Abstract
This paper presents the first multi-tissue study of diet in post-medieval London using both the stable light isotope analysis of carbon and nitrogen and analysis of microdebris in dental calculus. Dietary intake was explored over short and long timescales. Bulk bone collagen was analysed from humans from the Queen’s Chapel of the Savoy (QCS) (n = 66) and the St Barnabas/St Mary Abbots (SB) (n = 25). Incremental dentine analysis was performed on the second molar of individual QCS1123 to explore childhood dietary intake. Bulk hair samples (n = 4) were sampled from adults from QCS, and dental calculus was analysed from four other individuals using microscopy. In addition, bone collagen from a total of 46 animals from QCS (n = 11) and the additional site of Prescot Street (n = 35) was analysed, providing the first animal dietary baseline for post-medieval London. Overall, isotopic results suggest a largely C3-based terrestrial diet for both populations, with the exception of QCS1123 who exhibited values consistent with the consumption of C4 food sources throughout childhood and adulthood. The differences exhibited in δ15Ncoll across both populations likely reflect variations in diet due to social class and occupation, with individuals from SB likely representing wealthier individuals consuming larger quantities of animal and marine fish protein. Microdebris analysis results were limited but indicate the consumption of domestic cereals. This paper demonstrates the utility of a multidisciplinary approach to investigate diet across long and short timescales to further our understanding of variations in social status and mobility.
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Introduction
Between the seventeenth and nineteenth centuries, Britain witnessed industrialisation and urbanisation on an unprecedented scale. The expanding reach of the British Empire and successive conflicts, such as the Napoleonic Wars (1793–1815), saw Britain emerge as one of the world’s most powerful trading nations. Trade routes linked Britain to the Americas, Africa and Asia and opened the door for imports, such as tea, maize and sugarcane (Mintz 1985; Thirsk 2007). New transport networks facilitated the movement of people, goods and animals across the country, and important agricultural developments increased both the yield and variety of crops produced (Drummond and Wilbraham 1969; Williamson 2002). During this period, Britain stood at the forefront of these agricultural developments, and its capital city rapidly became an established centre for global trade and commerce. London, therefore, provides an ideal setting to examine dietary habits during this transformative period of history. While written documents attest to the changing nature of diets during this time, bioarchaeological data has the potential to complement or challenge these assumptions by providing insights at the population- or individual-level.
Increased urban development in Britain over the past decade has resulted in a growing number of rescue excavations of post-medieval cemeteries and crypts across the country, and in particular in London (Molleson et al. 1993; Cowie et al. 2008; Sibun and Ponce 2018). Post-medieval contexts often present favourable preservation conditions for human remains facilitating biomolecular analysis which, in conjunction with historical and archaeological datasets, can provide detailed insights into the lives of past populations. Furthermore, the preservation of different tissues, such as hair and bone, has enabled the investigation of diet over both short and long timescales, respectively (Richards 2006; Wilson and Cadwallader 2010; Beaumont et al. 2013a; Brown and Alexander 2016). Carbon and nitrogen stable isotope analysis is an established method for palaeodietary reconstruction and is increasingly being applied to post-medieval populations from Britain (Müldner and Richards 2005, 2007a; Nitsch et al. 2010, 2011; Roberts et al. 2012; Beaumont et al. 2013a; Brown and Alexander 2016) and northern parts of Europe (Jørkov and Gröcke 2016; Holder et al. 2017). Research on London populations has included the analysis of higher status individuals (Trickett 2006), middle to working class populations (Molleson et al. 1993; Nitsch et al. 2010, 2011) and military populations (Roberts et al. 2012).
This research examines diet across the social spectrum, extending the current isotopic dataset for post-medieval London to two new sites with differing histories. Significantly, we have also analysed animals from the city, creating the first animal baseline for London for this period which enables a better understanding of both dietary signatures for the city and animal husbandry practices. Carbon (δ13C) and nitrogen (δ15N) stable isotope analyses of human bone collagen and hair keratin are used to explore dietary variation among and between the people buried at Queen’s Chapel of the Savoy (c. AD 1510 to 1854) and St Barnabas/St Mary Abbots (c. AD 1831 to 1853). In addition, dental calculus samples from four Queen’s Chapel of the Savoy individuals were analysed for food-related and non-dietary debris using microfossil analyses. The overall burial population at QCS includes civilians, hospital patients, prisoners and military personnel (Savoy Chapel Burial Records 1680–1854; Sibun and Ponce 2018). The site of St Barnabas/St Mary Abbots provides a comparison with individuals interred within the relatively affluent district of Kensington (Cathcart-Borer 1973; Croot 2004).
Diet in post-medieval Britain
Post-medieval London was socially stratified with pronounced differences between the diet and health of varying social classes, as shown by Charles Booth’s Poverty Maps of London (1898–1899), historical accounts of post-medieval diet (Mayhew 1861; Smith 1864) and osteological findings of increased mortality and nutritional disease in children of a lower socioeconomic status (Pinhasi et al. 2006; DeWitte et al. 2016). Fluctuations in food availability, inflated food prices and a decline in the demand for labour left many of the working class facing poverty (Mokyr 1988). In contrast, the wealthiest members of society could supplement their diet with luxury imported foods (Drummond and Wilbraham 1969). The amount of animal protein consumed also varied according to class (Olsen 1999). The elite could afford quality sources of animal protein and fish (Dyer 1988; Freeman 1989; Thirsk 2007) whereas the poorest members of society were restricted to cheap offcuts and items, such as smoked herring (Thirsk 2007; Clayton and Rowbotham 2009). In this study, nitrogen stable isotope analysis was used to investigate variations in animal protein consumption, although it is not possible to distinguish between meat or secondary animal products (O’Connell and Hedges 2001; Privat et al. 2005).
During the seventeenth century, the Savoy Hospital served as a military infirmary, accepting injured soldiers and seamen from the English Civil War (1642–1651) and Anglo-Dutch Wars (1652–1667) (Firth 1902; Keevil 1957). The military personnel buried in the Queen’s Chapel of the Savoy cemetery would therefore have been allocated weekly rations during their years of service which is well-documented (The Privy Council, Great Britain 1757; MacDonald 2014). The New Model Army (1645–1660) was supplied with rations of bread, cheese and salted meats (Gentles 1992; Nusbacher 2000; MacDonald 2014), and, in later years, naval personnel were given 4 lb of beef and 2 lb of pork a week (The Privy Council, Great Britain 1757). In the Georgian era, salted fish was dropped from the provision list, but ships were supplied with fishing equipment enabling the crew to access marine food sources (Vale 2008). The inclusion of both military personnel and civilians in the burial population at the Queen’s Chapel of the Savoy means that some variation in protein intake would be expected. In contrast, individuals from St Barnabas/St Mary Abbots may have been able to access larger quantities of protein and afford more expensive cuts of meat and fish due to their higher socioeconomic status (Oddy 1970; Greaves 2018).
The vast majority of the post-medieval British diet derived from C3 cereals, with the poor eating inexpensive rye or barley bread and the upper classes consuming wheat bread (Mitchell 1996; Thirsk 2007). The contribution of C4 cultigens (e.g. sugarcane, millet, maize) was more limited; however, there was a sharp increase in the consumption of sugar due to the colonization of the West Indies and abolition of the Sugar Tax in 1874 (Drummond and Wilbraham 1969; Rowbotham and Clayton 2008; Mant and Roberts 2015). The growing popularity of sugar was an important dietary transition, but as bone collagen carbon is derived mainly from dietary protein, the contribution of sugarcane (a carbohydrate) is less visible using the methods applied in this study (Ambrose and Norr 1993; Ambrose et al. 1997). Furthermore, sugar did not become an established component of the British diet across all classes until the 1880s (Deerr 1950) and burials at QCS and SB both ended around 1850. Maize was introduced to Britain from the Americas but took a long time to gain popularity (Greig 1996; Schmidt et al. 2005); however, its use as a famine food during the Great Irish Famine (1845–52) has been identified using stable isotope analysis (Beaumont and Montgomery 2016).
Dietary reconstruction using stable isotope analysis
Stable light isotope analysis is a widely applied methodology in bioarchaeology (Schoeninger and Moore 1992; Jaouen and Pons 2016). When the body is not experiencing nutritional stress, the carbon and nitrogen isotopic values of bone collagen largely reflect the protein component of the diet up to 10–30 years prior to death (Hedges et al. 2007). Hair keratin also reflects dietary protein but grows incrementally at an average of 1 cm per month and offers considerable potential in terms of diachronic information (Wilson et al. 2007). Although largely under-represented in the archaeological record, long lengths of hair have been used to interpret changes in diet, health and mobility (Wilson et al. 2007; Thompson et al. 2014; D’Ortenzio et al. 2015). Tooth dentine also forms incrementally during tooth formation, and, unlike bone, it does not undergo remodelling. Teeth therefore provide dietary information during childhood and adolescence, depending on the timing of tooth development (Eerkens et al. 2011).
Carbon isotope ratios can be used to distinguish between different plant groups based on their photosynthetic pathways. Most temperate plants use the C3 photosynthetic pathway, whereas tropical grasses (e.g. maize, sugarcane) use the C4 pathway (Calvin and Benson 1948; Hatch and Slack 1966). These pathways lead to distinctive isotopic values with C3 plants exhibiting δ13C values between − 19 and − 35‰ and C4 plants typically exhibiting values between − 8 and − 13‰ (O’Leary 1981; Ambrose 1990). Due to the diet-tissue offset in δ13C, the value generated from the bone collagen of an individual with a complete C3 protein diet would average around − 22‰, whereas a 100% C4 diet would be − 8‰ (Kellner and Schoeninger 2007). Carbon isotope values also differ between marine species and C3 terrestrial-based resources because CO2 in the ocean is derived from dissolved inorganic carbon and enriched with respect to atmospheric CO2 (Schwarcz and Schoeninger 2011; Eriksson 2013). Therefore, marine flora and fauna have elevated δ13C values in comparison to terrestrial ones (Schwarcz and Schoeninger 2011; Eriksson 2013). Nitrogen isotopes can provide information on trophic level due to a step-wise fractionation of 15N enrichment as the food chain progresses, leading to a rise in δ15N values by around 2–5‰ with each trophic step (Bocherens and Drucker 2003; O’Connell et al. 2012). There is also a slight enrichment of 0–2‰ in δ13C as trophic levels increase (Bocherens and Drucker 2003). As aquatic food chains tend to be longer than terrestrial ones, animals feeding exclusively on marine sources display δ15N values around 9‰ more positive than those fed on terrestrial sources (Schoeninger et al. 1983; Schoeninger and DeNiro 1984).
Precise dietary reconstruction using human bone collagen is challenging as many factors can result in enriched nitrogen values in plants and their consumers, including environmental conditions, manuring and physiological stress (Bogaard et al. 2007; Katzenberg and Lovell 1999; Schwarcz et al. 1999; Britton et al. 2008; Fraser et al. 2011; Hertz et al. 2015). However, by combining multiple measurements of different isotopes and tissues, interpretations of dietary composition (Webb et al. 2013; Jørkov and Gröcke 2016), weaning practices (Henderson et al. 2014; Tsutaya and Yoneda 2015), nutritional stress (Hobson et al. 1993; Beaumont et al. 2015) and disease (Reitsema 2013) are possible. Furthermore, analysis of bone collagen from local animals is required to provide baselines against which human dietary signals can be examined.
Exploring food consumption through the analysis of dental calculus
Dental calculus (calcified dental plaque) can also provide dietary information for an individual. As plaque mineralises in the mouth, microdebris and biomolecules originating from the oral microbiome, dietary sources and environmental microparticles can become trapped in the matrix (Armitage 1975; Dobney and Brothwell 1988; Warinner et al. 2015; Weyrich et al. 2015). Dental calculus can offer unique insights into food consumption and culinary practices through the identification of ancient proteins, such as milk (Warinner et al. 2014) and plant proteins (Hendy et al. 2018), as well as through the retrieval of plant microfossils (Dudgeon and Tromp 2014; Buckley et al. 2014). Furthermore, dental calculus can also entrap non-dietary debris relating to environmental pollutants, craftwork and oral hygiene activities (Hardy et al. 2016; Radini et al. 2017). To gain a snapshot of diet at the individual-level, analysis of calculus microdebris was performed on four individuals from the Queen’s Chapel of the Savoy. This method has previously been applied to urban medieval populations from the UK (Radini et al. 2016) and Europe (Lazzati et al. 2016), and it is becoming a complementary line of evidence for isotope studies (Wang et al. 2016; Baldoni et al. 2018).
Materials and methods
Human and animal samples for this research were derived from the following three sites across London: the Queen’s Chapel of the Savoy, St Barnabas and Prescot Street (Fig. 1).
Map of Victorian London showing the locations of the sites of study, post-medieval sites mentioned in the text and landmarks. The city of London is shaded (map by Helen Goodchild, Department of Archaeology, Univeristy of York; 1851 parish data from Satchell et al. (2016)
The Queen’s Chapel of the Savoy
The Queen’s Chapel of the Savoy (QCS) cemetery is located approximately 150 m northwest of Waterloo Bridge, in the City of Westminster. The site was excavated by the Archaeology South-East, UCL, in 2011 in response to the redevelopment of the chapel, and 609 burials were excavated (Sibun and Ponce 2018). Historical and burial records indicate that the cemetery population represents a range of individuals, including parishioners, hospital patients, military personnel and criminals (Savoy Chapel Burial Records 1680–1854; Somerville 1960). The cemetery was first used in 1523 when a hospital for the poor was built in accordance with the wishes of the late King Henry VII (Thornbury 1878a). In addition to the hospital, the precinct included the Queen’s Chapel (formerly St John’s Chapel) and churchyard which served as a burial ground for the parishioners (Somerville 1960). During the English Civil War (1642–1651), the Savoy Hospital was converted to a military infirmary and later accepted injured seamen from the first and second Anglo-Dutch Wars (1652–1667) (Firth 1902; Keevil 1957). In 1679, the site underwent another transformation when part of the precinct became the barracks for the Foot Guards and a prison (Strype 1720). The hospital was dissolved in 1702, and, by 1816, all but the chapel had been demolished (Somerville 1960). Throughout the site's many transformations, the Queen's Chapel of the Savoy churchyard remained in use until 1854 when the cemetery was closed in accordance with the 1853 Burial Act (Burial Act 1853). Given the continual use of the site over 300 years, the density of graves and level of truncation, it was not possible to phase the burials. However, it is most likely that the surviving graves represent the later years of use (Sibun and Ponce 2018).
The use of QCS as a hospital and military infirmary is supported by the material culture and osteological evidence (Sibun and Ponce 2018). Of the total buried population, 85% (n = 519) were adults age 18 + years of age and the remaining 15% (n = 90) were sub-adults (foetus to 17 years old). Of the adults for whom sex could be estimated, 76% were male (325/430) and 24% female (105/430). The imbalance between the adult and sub-adult population and between the sexes supports the use of the burial ground for military personnel. In the overall skeletal population, 68% (417/609) individuals were affected by some form of trauma, including fractures of the upper and lower limbs, the skull, and two examples of cranial gunshots. Furthermore, 25% (154/609) of all individuals showed osteological evidence of infection. Records from Charles Hayes, a surgeon at the Savoy Hospital in the eighteenth century, indicate that sexual transmitted diseases, such as gonorrhoea and syphilis, were common among the soldiers at QCS (Hales 1770). Recorded finds including a musket ball, 138 fragments of clay pipes and dress accessories further attest to the use of the site during the seventeenth–eighteenth centuries. The total number of finds from the site was relatively low, but these finds, along with a small number of faunal remains, are consistent with rubbish disposal. While the faunal material cannot be directly linked to the human burials, it is unlikely to be intrusive, as pottery finds indicate that the rate of rubbish disposal slowed down in the eighteenth century, and, following the disuse of the cemetery, the ground remained undisturbed (Sibun and Ponce 2018).
St Barnabas/St Mary Abbots
St Barnabas church is located in West Kensington, London, on Addison Road. In 1829, it was consecrated and designated a chapel of ease to St Mary Abbots, which is located approximately 1 mile east of the site. Records indicate that the sample population was originally interred at St Mary Abbots between 1831 and 1853 before being reburied at St Barnabas, although the precise date of the transfer is unknown (Goldsmith 2016). For the purpose of this study, the population will be referred to as St Barnabas (SB). In 1991, individuals were exhumed from the crypt in response to construction work, and a selection of individuals was retained for further study (Goodyear et al. 1994). It is likely that some individuals represent lifelong residents of the area. In the medieval period, Chelsea and Kensington were an attractive retreat for the upper classes and nobility, with King Henry VIII acquiring the manor of Chelsea in 1536 (Cathcart-Borer 1973; Croot 2004). The construction of the Royal hospital in 1682 drew more people to settle in the area. By the seventeenth and eighteenth centuries, Kensington became increasingly urbanised, and St Mary Abbots was extended to meet the demands of the growing congregation (Hobhouse 1986; Cowie et al. 2008).
Prescot Street
The QCS cemetery contained few animal bones, and the site’s complex urban stratigraphy means that the animal remains recovered may not be directly associated with the human burials. Therefore, in addition to 11 animal remains from QCS, a larger comparative post-medieval faunal assemblage was also analysed from Prescot Street (PS), East London, to provide an isotope baseline. Prescot Street was excavated by LP Archaeology in 2006. In the early medieval period, the land was used for agriculture and the disposal of domestic refuse (Richardson 2010). Towards the end of the fifteenth century, Aldgate developed into an affluent residential area, and Prescot Street itself was built in 1678. The area underwent significant development in the eighteenth–nineteenth centuries due to the increased demand for housing in London which resulted in the construction of densely spaced lower-quality housing. The faunal remains analysed in this study were recovered from quarry pits from the 16th to 19th centuries (Reilly 2014).
Isotope analysis of human and faunal remains
Ribs were preferentially sampled from human burials; however, other elements were sampled when these were unavailable (Table 1). From QCS, 66 adults were selected for bone collagen, including 26 females and 40 males. Four additional adult individuals were sampled for bulk hair keratin analysis. Animal bones (n = 11) were also sampled from QCS, excavated from cemetery deposits. A total of 25 adults were sampled from SB for bone collagen, 12 females and 13 males. Among these individuals, one female, SB48, had scalp hair. The results of incremental hair analyses have already been published for this individual (Brown and Alexander 2016), and, for this study, bulk values were calculated for comparison. Animal remains representing a range of species were also sampled from Prescot Street (n = 35). No attempt was made to distinguish between sheep and goat bones.
Bone collagen was extracted using a modified Longin (1971) method with additional ultrafiltration (Brown et al. 1988; Richards and Hedges 1999). Bone samples (300–400 mg) were demineralised by immersion in 0.6 M HCl for 1–4 days. The resultant pseudomorphs were rinsed three times in distilled water, and the residue was gelatinized in pH 3 HCl at 80 °C for 48 h. The soluble collagen solution was filtered to remove insoluble residues (Brock et al. 2013), and the supernatants were then ultrafiltered to isolate the high molecular weight > 30 kDa fraction and lyophilized in a freeze drier. Serial sectioning of dentine of the lower second molar of individual QCS1123 followed Beaumont et al.’s (2013b) method 2. The M2 was cleaned with a sandblaster, and the crown was cut in half leaving two halves with one root each. As much of the enamel as possible was removed from one half using a hand-held drill. The full longitudinal root section from the tip of the crown to the bottom of the root was demineralised and sectioned into 1 mm increments using a scalpel. Demineralization took around three weeks. Each 1 mm section was gelatinized and freeze-dried without filtration.
For each individual or individual tooth section, approximately 1.0 mg of the resulting purified collagen was weighed in duplicate into tin capsules (8 × 5 mm, Elemental Microanalysis, UK) for analysis. A control sample of modern homogenised bovine bone was weighed and processed with each batch of the samples. The isotopic and collagen composition of the control was previously determined; so, it served as a quality control of sample processing (Budzikiewicz and Grigsby 2006).
The human hair samples from QCS were assessed for surface condition at the University of Bradford Analytical Centre using an FEI Quanta 400 Environmental Scanning Electron Microscope. Hair samples were prepared for sampling according to standard protocols (Thompson et al. 2014). Adherent soil and exogenous organic deposits were removed from the surface by overnight soaking/gentle agitation in 2:1 (vol/vol) methanol/chloroform, followed by sonication within scintillation vials in an ultrasonication bath (3 × 15 min). The organic solvent was then removed, and the hair sample was rinsed in deionized water (3 separate washes, each with sonication). The final wash was decanted off, and the cleaned sample was frozen, lyophilized and preconditioned for weighing into tin capsules.
The δ13C and δ15N ratios of the QCS, SB and PS bone collagen were measured using a Secron continuous-flow 20–22 isotope ratio mass spectrometer (CF-IRMS) interfaced with a Universal Sercon GSL preparation at BioArCh, University of York. The QCS hair samples were analysed by EA-IRMS using a ThermoFinnigan FlashEA 1112 elemental analyser coupled to a DeltaPlus XL multicollector mass spectrometer at the University of Bradford Isotope Laboratory. When sufficient material was available, the hair samples were measured in duplicate. The condition of the QCS hair samples meant that only bulk measurements were possible for this study.
All isotopic values are reported as the ratio of the heavier isotope to the lighter isotope (13C/12C or 15N/14N) as δ values in parts per mille (‰) relative to international standards, VPDB for δ13C and atmospheric N2 (AIR) for δ15N, using the following equation: [δ = (Rsample − Rstandard) / Rstandard] (Coplen 1994). At the University of York, in-house fish gelatine standards were calibrated to international reference materials IAEA-N-2 (ammonium sulphate, δ15NAIR = + 20.30‰), IAEA-600 (caffeine, δ15NAIR = + 1.0‰, δ13CVPDB − 27.77‰) and IA-R006 (sugar cane δ13CVPDB − 11.64‰). At the University of Bradford, the following reference materials were used: IAEA-600 (caffeine, δ15NAIR = + 1.0‰, δ13CVPDB − 27.77‰), IAEA-N-2 (ammonium sulphate, δ15NAIR = + 20.30‰) and IAEA-CH-3 (cellulose, δ13CVPDB − 24.72‰). In addition, an in-house fish gelatine and bovine liver standard was used. Measurement reproducibility was ± 0.3‰ or better for both δ13Ccoll and δ15Ncoll.
Microdebris analysis of QCS human dental calculus
For the purpose of this study, it was possible to analyse samples of dental calculus from the following four individuals from the Queen’s Chapel of the Savoy: QCS427, QCS819, QCS1746 and QCS1961. The calculus samples were removed from different teeth but all originated on the lingual surface. Following the established protocols (Cristiani et al. 2018), surface contaminants were removed by brushing the surface of the sample with an acupuncture needle used in conjunction with a 0.06 M solution of HCl. The samples clean weight varied between 6 and 8.5 mg (QCS427: 6 mg; QCS819: 6.5 mg; QCS1746 8.5 mg; QCS1961: 7 mg). Once free of any visible contaminants, the calculus was placed in sterile Eppendorf tubes, rinsed in ultrapure water, transferred to new Eppendorf tubes and demineralised in a 0.06 M solution of HCl. The demineralised calculus, often in small flecks, was siphoned out of the tubes using an Eppendorf pipette and placed onto a sterile glass slide. A drop of a 50:50 glycerol and ultrapure water solution was added to the sample before adding a coverslip and sealing the slide. The slides were scanned in their entirety using an Olympus inverted light microscope under magnification between 400 and 630× and complemented by observation under polarised light. The identification of retrieved microfossils was based on anatomical and optical properties and through comparison with a built for the purpose reference collection hosted at the University of York (Warinner et al. 2014; Radini et al. 2016).
Results
Faunal and human bone collagen
The QCS and SB human bone collagen results are displayed in Table 1 with faunal results from QCS and PS presented in Table 2. The bone collagen results for all sites are plotted in Fig. 2, and summary statistics is presented in Table 3. Samples were subjected to a series of quality controls to ensure the accuracy of the data and assess preservation, and these included a collagen yield of 1% or higher, C/N ratio of 2.9–3.6, %C of ca.15–48% and %N of ca. 5–17% (DeNiro 1985; Ambrose 1993, Ambrose 1990; van Klinken 1999; Sealy et al. 2014). Sample QCS1558 had a collagen yield of 0.9% but met all other criteria, indicating good sample quality and was therefore carried forward for analysis.
The δ13Ccoll values for sheep/goat and cows from both sites are consistent with expectations that ruminants in post-medieval Britain were raised on C3 fodder, but the QCS fauna on average are enriched in δ15N when compared to PS. The one exception for PS is sample PCC08 which produced a δ15N of 8.5‰, the maximum for all the cattle sampled across the sites of study. Furthermore, sample QCS117S1 (sheep/goat) produced a δ15N value of 10.2‰. Nitrogen values also reveal differences in the feeding regime of the animals at QCS and PS. Two pigs, QCS117P1 and QCS117P2, produced δ15N values 5.0‰ and 9.1‰, respectively. Similarly, one pig from PS (PCP13) gave a value of 4.6‰ and another (PCP04) produced a δ15N value of 10.0‰.
Turning to human diets, the QCS population exhibits a wide range in δ13Ccoll and δ15Ncoll (8.1‰ and 4.5‰, respectively). For SB, the range for both isotopes is slightly smaller, at 2.5‰ for δ13Ccoll and 3.3‰ for δ15Ncoll. Individual QCS1123 is an outlier with a δ13Ccoll value of − 13.0‰, which is more than 2 standard deviations from the population mean (− 19.4‰) (Table 3). When comparing the two sites statistically (Mann–Whitney U test), significant differences were found between δ13Ccoll (U = 569, P = < 0.03) and δ15Ncoll (U = 185.5, P = < 0.001) values. Statistical tests were performed using SPSS Statistics Version 25. Comparing the mean bulk bone collagen values for QCS and SB (Fig. 3) reveals that the SB population is enriched in nitrogen. This may be reflective of differences in social status as St Barnabas and St Mary Abbots were located in an affluent area and local individuals may have consumed more animal and freshwater or marine protein than the average London civilian (Thirsk 2007).
Results for the faunal remains from both sites were pooled due to the highly variable δ13Ccoll and δ15Ncoll observed across both assemblages. In addition, the complex urban stratigraphy at QCS and depositional context for the animal remains mean that they may not directly relate to the diets of the burial population. Comparison of the QCS mean for humans and mean for all animals (− 21.6‰ for δ13Ccoll and 6.5‰ for δ15Ncoll) reveals that humans are on average 2.2‰ higher for δ13Ccoll and 5.7‰ for δ15Ncoll than the faunal remains. The offset for carbon is just larger than anticipated trophic level effect, and nitrogen is towards the higher range of values reported for diet–collagen spacing (Bocherens and Drucker 2003; O’Connell et al. 2012). This suggests that the human population may have consumed enriched sources of 15N, such as marine or freshwater protein.
Tooth dentine results for individual QCS1123
The lower second molar of human individual QCS1123 was serial sectioned to further explore the bulk bone dietary signal (δ13Ccoll of − 13.0‰) that suggested the consumption of C4 crops in adulthood. The isotopic profile (Fig. 4) indicates that this individual consumed food similarly enriched in 13C throughout their childhood (Table SI1). Analytical uncertainty was ± 0.2‰ (1σ) for both δ13C and δ15N.
δ13C and δ15N values for dentine serial sections from second molar (M2) of QCS1123 plotted against approximate age in years. The approximate age assigned to each dentine segment was calculated following Beaumont and Montgomery (2015)
Bulk hair results for QCS and SB
Bulk hair δ13Cker and δ15Nker values for QCS are presented in Table 4; incremental hair sample results for SB48 were published in Brown and Alexander (2016) and pooled here for comparison. The individual from SB exhibits a similar δ15N signal compared to the QCS individuals but with slight δ13C enrichment.
Dental calculus
All four QCS individuals were found to have small particles entombed in their calculus. These mainly consisted of mineral grit, undiagnostic plant tissues and starch granules (Table SI2). In general, the microparticle content was low, likely due to the small size of the dental calculus samples available for analysis. In most cases, starch granules were found to be very damaged, and secure identification even to tribe level was not possible. However, the starch granules were of two main typologies: single and compound, hence originating from at least two different sources of starchy plants. Single starch granules were consistent with large, oval to sub-oval granules and small round granules pointing to the bimodal distribution found in the majority of the species of the Triticeae tribe, the tribe of grasses (Poaceae) (Fig. 5) to which wheat and barley belong (Cristiani et al. 2018). Compound starch granules are found in a variety of tribes of grasses and other plants, but, in this context, they could belong to the tribe of Poaceae, and in particular with species of the genus Avena; however, precise taxonomic identification was not possible. The most likely source of starch granules of compound typology is likely to be oats, as oatmeal would be a common food at the time. Small fragments of burnt debris, potentially microcharcoal or soot, were also present (Fig. 5). The fragments of plant tissues were too small to allow for taxonomic identification. Overall, the remains were found to be in a very poor status of preservation considering their age and when compared to those of earlier periods (e.g. Cristiani et al. 2018; Hardy et al. 2016; Radini et al. 2017).
Discussion
Animal management in post-medieval London
The QCS and PS faunal isotope results are the first reported for post-medieval London and conform to expectations that livestock at this time were raised primarily on C3 forage and fodder crops. In contrast, the nitrogen isotope values display an enrichment and variation greater than those seen at other late-medieval and post-medieval British sites (Müldner and Richards 2005, 2007a, 2007b; Millard et al. 2015) and are more typically of the variation seen in modern livestock at a national and regional scale (Camin et al. 2007; Perini et al. 2009; Kelly 2010). The range in δ15N is greater than that seen in sixteenth–seventeenth-century Durham (Millard et al. 2015) and likely reflects the great range over which animals were brought to London for slaughter. The improvements in roads and inland waterways, along with the technological developments of steamships and railways, significantly increased the ease and distance with which livestock and “dead meat” were moved, all connecting the surging capital’s population with farmers the length and breadth of the country (Thornbury 1878b; Perren 2000; Turner et al. 2001).
The wide range of δ15Ncoll values observed across this study reflects not only the geographical range from which London’s food supplies were drawn but also the diverse farming practices under which they were raised. At this time of intense agricultural development, there was great diversity in farming practices, with variations in stocking densities, folding and manuring with animal dung and organic waste all having the potential to influence the enrichment and variation seen in these samples (Bogaard et al. 2007; Bateman and Kelly 2007). Some domestic fowl and pigs may also present backyard animals consuming greater quantities of nitrogen-enriched foods (e.g. meat scraps), a phenomenon also reported for medieval pigs from urban York (Müldner and Richards 2007a; Hammond and O’Connor 2013).
Long-term and short-term dietary signals
The results of this study examine both long- and short-term dietary signals. Comparisons to bone collagen results for London fauna suggest that individuals from both QCS and SB populations ate a long-term diet comprised largely of terrestrial C3 foods, with the potential addition of some freshwater or marine resources or C4 foods (Ambrose 1993; Schwarcz and Schoeninger 2011). The hair results from the sites of the study provide a snapshot of the final months prior to death and also indicate a largely C3 terrestrial-based diet with some input of animal protein. Unfortunately, it was not possible to sample bone from these individuals, which prevents any consideration of a change of diet during the last period of life.
The analysis of dental calculus from four individuals from QCS confirms the consumption of at least two different sources of starchy food, consistent with historical records pointing to the consumption of wheat, rye, barley and oats (Mitchell 1996; Thirsk 2007). Overall, the individuals did not produce a large quantity of identifiable microfossils which, in part, could be due to the poor preservation of the microremains themselves. Retrieved microparticles were very small in size and did not allow for the precise identification of their origin. These findings stand in contrast with previous studies of medieval and post-medieval calculus, which demonstrated higher quantities of identifiable dietary and environmental microdebris (Lazzati et al. 2016; Radini et al. 2016, 2019). Nevertheless, the number of individuals analysed in this study was low. It is possible that the relatively poor preservation of microremains in the QCS calculus is also related to the heavy processing of food as a result of new technological advancements (Clayton and Rowbotham 2009). Analysis of additional post-medieval individuals would be needed to explore this further. Microcharcoal could be the result to the exposure of smoke and has been found consistently in dental calculus samples from a range of periods, including Lower Palaeolithic hominins (Hardy et al. 2016). For this study, it was not possible to analyse calculus from SB for microremains; however, Hendy et al. (2018) identified peptides specific to brassica plants in the calculus of one individual (SB21) providing direct evidence of C3 plant consumption.
The range of δ15N bulk collagen values within the QCS population may reflect differences in food preference or access. As previously noted, some variation may be due to the large supply network providing London with livestock and meat but a more extensive analysis of post-medieval fauna would be needed to investigate if animals, and ultimately human, isotopic values may reflect geographical differences relating to the supply chain. Dietary variation is also likely to reflect differences in socioeconomic status as QCS is a heterogeneous burial population made up of civilians, patients, prisoners and military personnel (Somerville 1960). Records from the contemporary hospital of St Bartholomew, London, show that patients ate a diet comprised of wheat bread, meat, cheese and ale (Moore 1918; Drummond and Wilbraham 1969). Prisoners would have had a highly restricted diet of bread and water (Howard 1789), and it was not until the late nineteenth century that dietary regulations included foods, such as potatoes and meat (Drummond and Wilbraham 1969). Excluding the outlier QCS1123, six collagen samples from QCS produced δ15N values < 11‰, with accompanying δ13C values between − 19.2 and − 21.1‰. These δ15N values are similar to those seen in some individuals from Kilkenny Workhouse in Ireland who are believed to represent the diet of the rural Irish poor consisting mainly of potatoes (C3), with little or no meat protein (Beaumont et al. 2013a). The Scottish poor would have also had a limited diet of oats, pulses and dairy (Collins 1975; Riggs 1994). It is therefore possible that some individuals at QCS may have eaten a diet very low in animal protein or spent most of their life outside of London. A further consideration is that the QCS study population included starving prisoners which could result in higher δ15N values that are not representative of long-term diet (Hobson et al. 1993; Fuller et al. 2005; Mekota et al. 2006). Beaumont and Montgomery (2016) used incremental dentine collagen δ13C and δ15N analyses to identify periods of physiological stress in individuals from Kilkenny workhouse. However, there are no well-documented, associated periods of famine with QCS, and it is therefore harder to confidently attribute changes in δ15N to starvation, particularly since the bone collagen of ribs is believed to turnover every 2–5 years (Cox and Sealy 1997).
Pathological evidence of dietary excess among the QCS study group shows that the burial population encompasses a whole spectrum of London society. Two male individuals aged 45 + from QCS were identified as suffering from DISH (Diffuse Idiopathic Skeletal Hyperostosis), a condition that can be associated with obesity (Waldron 1985; Verlaan et al. 2007) and causes the calcification of ligaments and the fusion of the spine (Rogers and Waldron 2001; Roberts and Manchester 2005). The two individuals with DISH produced enriched nitrogen values compared to the mean of the overall population. Individual QCS123 had δ15Ncoll value of 13.2‰, and QCS731 produced a value of 13.8‰. While some studies have shown that some DISH sufferers have elevated δ15Ncoll values, stable isotopes analyses cannot be used to distinguish between those with DISH and unaffected individuals (Müldner and Richards 2007b; Spencer 2008; Quintelier et al. 2014), and it remains difficult to disentangle the influence of physiological and dietary processes. It is, however, possible that these QCS individuals were from the higher ranks of society, and their 15N enrichment reflects a high protein diet.
Military connections
As previously noted, the inclusion of sailors and soldiers in the QCS burial population could potentially be isotopically distinctive from the civilian population due to the relatively high protein intake (Roberts et al. 2012; MacDonald 2014). While it is not possible to match QCS burials directly with the burial records, the presence of specific pathologies or trauma could tentatively identify military personnel. For example, adult male individual QCS117a had a fatal gunshot wound to the head most likely caused by musket fire (Sibun and Ponce 2018). Although suicide cannot be completely ruled out, there are only three documented deaths by gunfire for QCS and only one likely to have involved a musket. The individual in question, Samuel Jackson, was killed for desertion in 1752 (ibid: 87). The isotope results for QCS117a display a slightly enriched δ15Ncoll value of 12.8‰ when compared to the population mean (12.2‰). However, the difference is small and as QCS117 is represented by a cranial fragment the dietary signal probably represents an earlier period of the individual’s life when compared to the majority of the sample population from whom ribs were sampled (Fahy et al. 2017). Another individual (QCS589) had evidence of a severe dislocation of the shoulder resulting in significant bone loss of the humeral head as well as two healed rib fractures. This individual produced a relatively high δ15Ncoll value of 13.6‰, but as their injuries could have been sustained in an accident or confrontation, we cannot confidently identify them as a soldier or sailor.
The heterogeneous social structure of the QCS burial population makes it challenging to confidently identify military personnel based on δ15Ncoll values alone. However, using the δ13Ccoll values, it was possible to identify a dietary outlier. Individual QCS1123 produced a bulk bone carbon value of − 13.1‰ falling within the range of − 16 to −7‰ suggestive of a C4-based diet. The individual was a male aged 31–45 years old (Sibun and Ponce 2018), and, given that there was a military presence in the cemetery, his unusual dietary signature may be due to him having originated from elsewhere. To further investigate the dietary signal of QCS1123, dentine from the M2 of the same individual was analysed. The results indicate that they also consumed C4 crops throughout childhood and therefore likely migrated to London in later life. QCS1123 was therefore compared to individuals who would be expected to have eaten a substantial amount of C4 staples and were buried in North America (Table 5): plantation burials from Virginia in Chesapeake Bay (c.1658–1680) (Ubelaker and Owsley 2003), American soldiers buried at Snake Hill Ontario (1814) (Raynor and Kennett 2008) and British colonial and American soldiers who died at the Battle of Stoney Creek in Ontario (1813) (Emery et al. 2015).
Individual QCS1123’s carbon value was greater than the mean δ13C values for all comparison sites, and only four individuals from Chesapeake had more positive δ13C values. Individual QCS1123 is therefore most likely to have spent the majority of their life outside of London. While it is impossible to state definitively if they were associated with the Royal Navy, it is possible that they were recruited or taken prisoner during the American Wars of Independence (1775–1783) and other international conflicts in Northern America (Rink 1986; Rogers 2007; Roberts et al. 2012) or were previously associated with the Royal Naval outposts in the West Indies (Varney 2011). C4 cultigens (millet) would also, however, have been available from elsewhere in Europe at this time (Holder et al. 2017).
To further investigate whether the function of the QCS cemetery as a burial ground for sailors had any isotopic significance, the mean δ13Ccoll and δ15Ncoll values were compared to two contemporary Naval Hospital sites at Plymouth and Gosport (Fig. 6; Table SI3) (Roberts et al. 2012). Individuals from Plymouth Naval hospital exhibited δ13Ccoll mean value towards the expected range for C4 crops and included one individual with a substantial input of C4 protein. These results correspond with historical evidence that Plymouth population had a higher probability of sailing to North America and therefore a higher likelihood of consuming C4 plants or the meat of animals fed on C4 foods (Roberts et al. 2012). The QCS population produced mean isotopic values most similar to Gosport. The Gosport population conforms to expectations based on historical literature that seamen ate a controlled diet of C3-based foods and a relatively large proportion of meat protein (MacDonald 2004). Despite the inclusion of individual QCS1123 with substantial C4 input and the use of the military infirmary of the Savoy during a range of conflicts, such as the American Wars of Independence (1775–1783) and Anglo-American War (1812) which would have provided the opportunity to consume C4 foods, the overall majority of the population appears to have eaten a C3-based diet.
Adult δ13Ccoll and δ15Ncoll mean values and standard deviations from post-medieval Northern European sites of Assistens Cemetery, Denmark (n = 111) (Jørkov and Gröcke 2016); Salberget, Sweden (n = 32) (Bäckström et al. 2017); Stavanger Cathedral, Norway (n = 7) (van der Sluis et al. 2016) and military individuals from Siaures miestelis, Lithuania (n = 77) (Holder et al. 2017); Plymouth Hospital, UK (n = 38) (Roberts et al. 2012) and the Royal Naval Hospital Gosport, UK (n = 24) (Roberts et al. 2012). QCS is marked in red and SB in blue. Adults are defined as individuals 18 years of age or above
Wider comparisons to post-medieval sites
To contextualise the results of this study, the isotopic mean values of QCS and SB were compared to adult bulk bone collagen from other post-medieval populations from across the United Kingdom (Fig. 7; Table SI4) and Northern Europe (Fig. 6; Table SI3). Statistical comparisons were performed between the two sites of this study and published δ13Ccoll and δ15Ncoll results for adult individuals from the London sites of Chelsea, Christ Church Spitalfields and Lukin Street (Table 6) (Molleson et al. 1993; Trickett 2006; Nitsch et al. 2010, 2011). Pair-wise comparisons (Mann–Whitney U test) between QCS and Chelsea (U = 454.5), Christ Church Spitalfields (U = 976) and Lukin Street (U = 1498.5) show statistically significant differences in δ13Ccoll (P = < 0.03). For δ15Ncoll, significant differences were also identified (P = < 0.001) between QCS and Chelsea (U = 516), Christ Church Spitalfields (U = 774) and Lukin Street (U = 1303.5).
Adult δ13Ccoll and δ15Ncoll mean values and standard deviations for the post-medieval sites of Chelsea (n = 28), Lukin Street, London (n = 64), Christ Church Spitalfields, London (n = 88), All Saints, York (n = 10), Coventry (n = 11), St Martin’s, Birmingham (n = 18) and Kilkenny Workhouse, Ireland (n = 14) (Trickett 2006; Beaumont et al. 2013a; Nitsch et al. 2010; Müldner and Richards 2007a; Richards 2006). QCS is marked in red and SB in blue. Adults are defined as individuals being 18 years of age or above
All four sites display an enriched nitrogen mean value when compared to QCS. For Chelsea and Christ Church Spitalfields, this is expected due to the inclusion of wealthier individuals consuming more freshwater or marine food sources and terrestrial animal protein (Molleson et al. 1993; Trickett 2006; Nitsch et al. 2010, 2011). Lukin Street comprises mainly of first- and second-generation Irish immigrants of which some may have been survivors of the Great Irish Famine (Beaumont et al. 2013a). In comparison to other sites from across the United Kingdom, the QCS population fell somewhere between the high and lower class groups. Mean δ13Ccoll and δ15Ncoll values were most similar to those calculated for Coventry (δ13Ccoll − 19.5‰, δ15Ncoll 12.1‰) whom are believed to represent the working classes (Trickett 2006). When the mean bulk δ15Nker value for QCS (11.6‰) is compared to hair results from adults from Lukin Street (n = 5) (Beaumont et al. 2013a) and Christ Church Spitalfields (n = 17) (O’Connell and Hedges 1999), it is the same as the mean value for Lukin Street (11.6‰) and only slightly higher than Spitalfields (11.1‰). The mean δ13Cker for QCS is − 20.2‰ compared to mean value of − 19.1‰ for Lukin Street and − 19.4‰ for Christ Church Spitalfields.
When comparing the bulk bone collagen results of SB, there are statistically significant differences (Mann–Whitney U test) in δ15Ncoll when compared to Chelsea (P = < 0.001, U = 122) and Lukin Street (P = < 0.001, U = 388.5). There was no statistically significant difference in δ15Ncoll when compared to Christ Church Spitalfields (Molleson et al. 1993; Nitsch et al. 2010, 2011). When compared to Northern European and military populations, SB displayed an enriched δ15Ncoll mean value compared to all other assemblages. The likelihood that SB included higher status individuals consuming marine protein is supported by comparison to the δ15Ncoll mean values of Salberget mining community, Sweden, and Assistens cemetery, Copenhagen, which are believed to include individuals consuming appreciable amounts of marine protein (Bäckström et al. 2017) and brackish fish (Jørkov and Gröcke 2016), respectively. The predominantly C3-based diet of both the SB and QCS populations is underscored by the clear contrast with the mean δ13Ccoll value for the individuals from Siaures miestelis, Lithuania (Holder et al. 2017). The burial population is believed to include soldiers of Napoleon’s army, including potential recruits from Italy and Poland who would have consumed more C4 food sources (Reitsema and Vercellotti 2012; Reitsema et al. 2017).
Conclusion
The isotopic dietary signatures of human individuals buried at the Queen’s Chapel of the Savoy indicate that the population was very diverse, complementing historical and osteological datasets which suggest parishioners, seamen, soldiers, patients and prisoners were buried at the site. The differences exhibited in δ15Ncoll values likely reflect the differences in diet due to social class (access to different amounts of meat and freshwater/marine protein) and occupation (military and civilian). Furthermore, the cemetery’s association with a prison and hospital means some individuals’ δ15Ncoll values may have been influenced by physiological processes. The analysis of faunal remains from the same site and a comparable London site enabled the human isotopic data to be contextualised and suggest that the human population is more likely to have consumed terrestrial protein than marine sources. The results of this study provide further insights into animal management and dietary variation among London populations during the post-medieval period. The faunal results are the first reported for post-medieval London and demonstrate that animals were primarily raised on C3 fodder. The nitrogen values show greater variability suggesting different feeding regimes of different species, as well as livestock being drawn from other parts of the United Kingdom and being bought to London for market (Woodward 1973, 1977; Galloway 2012). While the human dental calculus samples provided limited dietary information, the poor preservation of plant remains could be evidence of change in food technology and should be further investigated using a larger dataset.
The comparative data from St Barnabas reveals further differences in social class and that this population is likely to have included more wealthy individuals consuming larger quantities of animal protein. Comparisons were also made between the Queen’s Chapel of the Savoy with other post-medieval sites which revealed an overlap of mean δ15Ncoll values in comparison to London populations and military and Northern European populations, underscoring the diversity of the burial population. We have shown that the general overall range of δ13Ccoll values fits well with expectations of the largely C3-based terrestrial diet typical for post-medieval Britain. However, the bulk bone collagen and dentine data for QCS1123 demonstrate that the population likely also included migrants, who originated from regions where C4 plants were more readily available for human consumption and as graze for animals. This study demonstrates how isotopes can be used to further our understanding of differences in social status and mobility within burial populations during the post-medieval period.
References
Ambrose SH (1990) Preparation and characterization of bone and tooth collagen for isotopic analysis. J Archaeol Sci 17:431–451
Ambrose SH (1993) Isotopic analysis of paleodiets: methodological and interpretive considerations. In: Sandford MK (ed) Investigations of ancient human tissue chemical analysis in anthropology, food and nutrition in history and anthropology, vol 10. Gordon and Breach, pp 59–130
Ambrose SH, Norr L (1993) Experimental evidence for the relationship of the carbon isotope ratios of whole diet and dietary protein to those of bone collagen and carbonate. In: Lambert JB, Grupe (eds) Prehistoric human bone: archaeology at the molecular level. Springer-Verlag, Berlin, pp 1–37
Ambrose SH, Butler BM, Hanson DB, Hunter-Anderson RL, Krueger HW (1997) Stable isotopic analysis of human diet in the Marianas Archipelago, Western Pacific. Am J Phys Anthropol 104:343–361
Armitage PL (1975) The extraction and identification of opal phytoliths from the teeth of ungulates. J Archaeol Sci 2:187–197
Bäckström Y, Mispelaere J, Ingvarsson A, Fjellström M, Britton K (2017) Integrating isotopes and documentary evidence: dietary patterns in a late medieval and early modern mining community, Sweden. Archaeol Anthropol Sci:1–20
Baldoni M, Scorrano G, Gismondi A, D’Agostino A, Alexander MMA, Gaspari L, Vallelonga F, Canini A, Rickards O, Martínez-Labarga C (2018) Who were the miners of Allumiere? A multidisciplinary approach to reconstruct the osteobiography of an Italian worker community. PLoS One 13:e0205362
Bateman AS, Kelly SD (2007) Fertilizer nitrogen isotope signatures. Isot Environ Health Stud 43:237–247
Beaumont J, Montgomery J (2015) Oral histories: a simple method of assigning chronological age to isotopic values from human dentine collagen. Ann Hum Biol 42:407–414 pmid: 26225904
Beaumont J, Montgomery J (2016) The Great Irish Famine: identifying starvation in the tissues of victims using stable isotope analysis of bone and incremental dentine collagen. PLoS One 11:e0160065
Beaumont J, Geber J, Powers N, Wilson AS, Lee-Thorp J, Montgomery J et al (2013a) Victims and survivors: stable isotopes used to identify migrants from the Great Irish Famine to 19th century London. Am J Phys Anthropol 150:87–98
Beaumont J, Gledhill A, Lee-Thorp J, Montgomery J (2013b) Childhood diet: a closer examination of the evidence from dental tissues using stable isotope analysis of incremental human dentine. Archaeometry 55:277–295
Beaumont J, Montgomery J, Buckberry J, Jay M (2015) Infant mortality and isotopic complexity: new approaches to stress, maternal health, and weaning. Am J Phys Anthropol 157:441–457
Bocherens H, Drucker D (2003) Trophic level isotopic enrichment of carbon and nitrogen in bone collagen: case studies from recent and ancient terrestrial ecosystems. Int J Osteoarchaeol 13:46–53
Bogaard A, Heaton THE, Poulton P, Merbach I (2007) The impact of manuring on nitrogen isotope ratios in cereals: archaeological implications for reconstruction of diet and crop management practices. J Archaeol Sci 34:335–343
Booth C (1898–1899) Map descriptive of London poverty 1898–1899, Digitised 2016, LSE archives: https://booth.lse.ac.uk/map/14/-0.1174/51.5064/100/0 Accessed 29 April 2019
Britton K, Müldner G, Bell M (2008) Stable isotope evidence for salt-marsh grazing in the Bronze Age Severn Estuary, UK: implications for palaeodietary analysis at coastal sites. J Archaeol Sci 35:2111–2118
Brock F, Higham T, Ramsey CB (2013) Comments on the use of Ezee-Filters™ and ultrafilters at Orau. Radiocarbon 55:211–212
Brown C, Alexander M (2016) Hair as a window on diet and health in post-medieval London: an isotopic analysis. IA. https://doi.org/10.11141/ia.42.6.12
Brown TA, Nelson DE, Vogel JS, Southon JR (1988) Improved collagen extraction by modified Longin method. Radiocarbon 30:171–177
Buckley S, Usai D, Jakob T, Radini A, Hardy K (2014) Dental calculus reveals unique insights into food items, cooking and plant processing in prehistoric central Sudan. PLoS One 9:e100808
Budzikiewicz H, Grigsby RD (2006) Mass spectrometry and isotopes: a century of research and discussion. Mass Spectrom Rev 25:146–157
Burial Act (1853) 16 & 17 Vict. c. 134, s. 1, https://www.legislation.gov.uk/ukpga/Vict/16-17/134 Accessed 10 December 2018
Calvin M, Benson AA (1948) The path of carbon in photosynthesis. Science 107:476–480
Camin F, Bontempo L, Heinrich K, Horacek M, Kelly SD, Schlicht C, Thomas F, Monahan FJ, Hoogewerff J, Rossmann A (2007) Multi-element (H,C,N,S) stable isotope characteristics of lamb meat from different European regions. Anal Bioanal Chem 389:309–320
Cathcart-Borer M (1973) Two villages: the story of Chelsea and Kensington. W.H. Allen
Clayton P, Rowbotham J (2009) How the mid-Victorians worked, ate and died. Int J Environ Res Public Health 6:1235–1253
Collins EJT (1975) Dietary change and cereal consumption in Britain in the nineteenth century. Agric Hist Rev 23:97–115
Coplen TB (1994) Reporting of stable hydrogen, carbon and oxygen isotopic abundances. Pure Appl Chem 66:273–276
Cowie R, Bekvalac J, Kausmally T (2008) Late 17th- to 19th-century burial and earlier occupation at All Saints, Chelsea Old Church, Royal Borough of Kensington and Chelsea. Lavenham Press, Great Britain
Cox G, Sealy J (1997) Investigating identity and life histories: isotopic analysis and historical documentation of slave skeletons found on the Cape Town Foreshore, South Africa. Int J Hist Archaeol 1:207–224
Cristiani E, Radini A, Borić D, Robson HK, Caricola I, Carra M, Mutri G, Oxilla G, Zupancich A, Šlaus M, Vujević D (2018) Dental calculus and isotopes provide direct evidence of fish and plant consumption in Mesolithic Mediterranean. Sci Rep 8:8147
Croot PEC (2004) Landownership: Chelsea manor. In: Croot PEC (ed) A history of the county of Middlesex, vol 12. Chelsea. Victoria County history, The Boyden Press, pp 108–115
D’Ortenzio L, Brickley M, Schwarcz H, Prowse T (2015) You are not what you eat during physiological stress: isotopic evaluation of human hair. Am J Phys Anthropol 157:374–388
Deerr N (1950) The history of sugar. Chapman and Hall, London
DeNiro MJ (1985) Postmortem preservation and alteration of in vivo bone collagen isotope ratios in relation to palaeodietary reconstruction. Nature 317:806
DeWitte SN, Hughes-Morey G, Bekvalac J, Karsten J (2016) Wealth, health and frailty in industrial-era London. Ann Hum Biol 43:241–254
Dobney K, Brothwell D (1988) A scanning electron microscope study of archaeological dental calculus. In: Olsen SL (ed) Scanning electron microscopy in archaeology, pp 372–385
Drummond J, Wilbraham A (1969) The Englishman’s food: a history of five centuries of English diet. Jonathan Cape, London
Dudgeon JV, Tromp M (2014) Diet, geography and drinking water in Polynesia: microfossil research from archaeological human dental calculus, Rapa Nui (Easter Island). Int J Osteoarchaeol 24:634–648
Dyer E (1988) The consumption of fresh-water fish in medieval England. In: Aston M (ed) Medieval fish, fisheries and fishponds in England. British Archaeological Reports, Oxford, pp 27–38
Eerkens JW, Berget AG, Bartelink EJ (2011) Estimating weaning and early childhood diet from serial micro-samples of dentin collagen. J Archaeol Sci 38:3101–3111
Emery MV, Prowse TL, Schwarcz HP, Brickley M (2015) Exploring dietary variability in a war of 1812 skeletal collection from Stoney Creek, Ontario, using stable carbon and nitrogen isotopes. Hist Archaeol 49:54–70
Eriksson G (2013) Stable isotope analysis of humans. In: Nilsson-Stutz L, Tarlow S (eds) The Oxford handbook of the archaeology of death and burial. Oxford handbooks online, pp 1–19
Fahy E, Deter C, Pitfield R, Miszkiewicz JJ, Mahoney P (2017) Bone deep: variation in stable isotope ratios and histomorphometric measurements of bone remodelling within adult humans. J Archaeol Sci 87:10–16
Firth CH (1902) Cromwell’s army: a history of the English soldier during the civil wars, the commonwealth and the protectorate. Methuen and Co, London
Fraser RA, Bogaard A, Heaton T, Charles M, Jones G, Christensen BT, Halstead P, Merbach I, Poulton PR, Sparkes D, Styring AK (2011) Manuring and stable nitrogen isotope ratios in cereals and pulses: towards a new archaeobotanical approach to the inference of land use and dietary practices. J Archaeol Sci 38:2790–2804
Freeman S (1989) Mutton and oysters: the Victorians and their food. Victor Gollancz
Fuller BT, Fuller JL, Sage NE, Harris DA, O’Connell TC, Hedges RE (2005) Nitrogen balance and delta15N: why you’re not what you eat during nutritional stress. Rapid Commun Mass Spectrom 19:2497–2506
Galloway JA (2012) Chapter 1: metropolitan food and fuel supply in medieval England. Regional and international contexts. In: van Cruyningen P, Thoen E (eds) Food supply, demand and trade: aspects of the economic relationship between town and countryside (middle ages–19th century). Brepols, Turnhout, pp 7–18
Gentles I (1992) The new model army in England, Ireland and Scotland, I645–I653. Blackwell Publishers, Oxford
Goldsmith S (2016) Draft historical context report for Fewston, St Barnabas, Victoria Cross and Spitalfields. Unpublished historical research report. University of York
Goodyear PD, MacLaughlin-Black SM, Mason IJ (1994) A reliable method for the removal of co-purifying PCR inhibitors from ancient DNA. Biotechnol Tech 16:232–234
Greaves P (2018) Regional differences in the mid-Victorian diet and their impact on health. JRSM Open 9(3):2054270417751866
Greig J (1996) Archaeobotanical and historical records compared—a new look at the of taphonomy of edible and other useful plants from the 11th to the 18th centuries A.D. Circaea (Journal of the Association for Environmental Archaeology) 12:211–247
Hales C (1770) A letter addressed to Cæsar Hawkins, Esq; serjeant surgeon to His Majesty, containing new thoughts and observations, on the cure of the venereal disease; the result of experience, in long and extensive practice. In: With a few extraordinary cases in that disease: particularly one of a servant, belonging to His Majesty’s houshold; deemed entirely a lost case: authenticated by the officers of His Majesty's mews. By Charles Hales, late surgeon to the Savoy Hospital, 2nd edn
Hammond C, O’Connor T (2013) Pig diet in medieval York: carbon and nitrogen stable isotopes. Archaeol Anthropol Sci 5:123–127
Hardy K, Radini A, Buckley S, Sarig R, Copeland L, Gopher A, Barkai R (2016) Dental calculus reveals potential respiratory irritants and ingestion of essential plant-based nutrients at Lower Palaeolithic Qesem Cave Israel. Quat Int 398:129–135
Hatch MD, Slack CR (1966) Photosynthesis by sugar-cane leaves. A new carboxylation reaction and the pathway of sugar formation. Biochem J 101:103–111
Hedges REM, Clement JG, Thomas CDL, O’Connell TC (2007) Collagen turnover in the adult femoral mid-shaft: modeled from anthropogenic radiocarbon tracer measurements. Am J Phys Anthropol 133:808–816
Henderson RC, Lee-Thorp J, Loe L (2014) Early life histories of the London poor using δ13C and δ15N stable isotope incremental dentine sampling. Am J Phys Anthropol 154:585–593
Hendy J, Warinner C, Bouwman A, Collins MJ, Fiddyment S, Fischer R, Hagan R, Hofman CA, Holst M, Chaves E, Klaus L, Larson G, Mackie M, McGarth K, Mundorff AZ, Radini A, Rao H, Trachsel C, Velsko IM, Speller CF (2018) Proteomic evidence of dietary sources in ancient dental calculus. Proc Biol Sci 285:20180977
Hertz E, Trudel M, Cox MK, Mazumder A (2015) Effects of fasting and nutritional restriction on the isotopic ratios of nitrogen and carbon: a meta-analysis. Ecol Evol 5:4829–4839
Hobhouse H (ed) (1986) The old court suburb. In: Survey of London: Volume 42, Kensington Square to Earl’s Court. London County Council, British History Online. 26 September 2017. http://www.british-history.ac.uk/survey-london/vol42/pp1-4, pp 1–4
Hobson KA, Alisauskas RT, Clark RG (1993) Stable-nitrogen isotope enrichment in avian tissues due to fasting and nutritional stress: implications for isotopic analyses of diet. Condor 95:388–394
Holder S, Dupras TL, Jankauskas R, Williams L, Schultz J (2017) Reconstructing diet in Napoleon’s Grand Army using stable carbon and nitrogen isotope analysis. Am J Phys Anthropol 163:53–63
Howard J (1789) An account of the principal lazarettos in Europe; with various papers relative to the plague: together with further observations on some foreign prisons and hospitals; and additional remarks on the present state of those in Great Britain and Ireland. Printed for J. Johnson, C. Dilly and T. Cadell, London
Jaouen K, Pons M-L (2016) Potential of non-traditional isotope studies for bioarchaeology. Archaeol Anthropol Sci:1–16
Jørkov MLS, Gröcke DR (2016) Investigating adult diet during Industrialization in Copenhagen based on stable isotope analysis of bone collagen and hair keratin. Archaeol Anthropol Sci:1–15
Katzenberg MA, Lovell NC (1999) Stable isotope variation in pathological bone. Int J Osteoarchaeol 9:316–324
Keevil JJ (1957) The seventeenth century English medical background. Bull Hist Med 31:408–424
Kellner CM, Schoeninger MJ (2007) A simple carbon isotope model for reconstructing prehistoric human diet. Am J Phys Anthropol 133(4):1112–1127
Kelly S (2010) The British beef origin project (BBOP). UK Food Standards Agency
Lazzati AMB, Levrini L, Rampazzi L, Dossi C, Castelletti L, Licata M, Corti C (2016) The diet of three medieval individuals from Caravate (Varese, Italy). Combined results of ICP-MS analysis of trace elements and phytolith analysis conducted on their dental calculus. Int J Osteoarchaeol 26:670–681
Longin R (1971) New method of collagen extraction for radiocarbon dating. Nature 230:241–242
MacDonald J (2014) Feeding Nelson’s navy: the true story of food at sea in the Georgian era. Frontline Books, London
Mant M, Roberts C (2015) Diet and dental caries in post-medieval London. Int J Hist Archaeol 19:188–207
Mayhew H (1861) London labour and the London poor, vol 1–4. Griggin and Bohn, London
Mekota A-M, Grupe G, Ufer S, Cuntz U (2006) Serial analysis of stable nitrogen and carbon isotopes in hair: monitoring starvation and recovery phases of patients suffering from anorexia nervosa. Rapid Commun Mass Spectrom 20:1604–1610
Millard A, Blesch J, Scollan M, Rex J, Ulewicz K, Grocke D (2015) Appendix: carbon and nitrogen isotopes in animals from Durham City. In: Millard AR, Dodd L, Nowell G (eds) Palace green library excavations 2013 (PGL13): isotopic studies. University of Durham
Mintz S (1985) Sweetness and power: the place of sugar in modern history. Penguin Books, London
Mitchell S (1996) Daily life in Victorian England. Greenwood Press, Gosport
Mokyr J (1988) Is there still life in the pessimist case? Consumption during the Industrial Revolution, 1790–1850. J Econ Hist 48:69–92
Molleson T, Cox M, Waldron HA, Whittaker DK (1993) The Spitalfields project, volume 2: the anthropology. The middling sort. Council for British Archaeology, York
Moore N (1918) The history of St. Bartholomew’s hospital. C.A. Pearson, London
Müldner G, Richards MP (2005) Fast or feast: reconstructing diet in later medieval England by stable isotope analysis. J Archaeol Sci 32:39–48
Müldner G, Richards MP (2007a) Stable isotope evidence for 1500 years of human diet at the city of York, UK. Am J Phys Anthropol 133:682–697
Müldner G, Richards MP (2007b) Diet and diversity at later medieval Fishergate: the isotopic evidence. Am J Phys Anthropol 134:162–174
Nitsch EK, Humphrey LT, Hedges REM (2010) The effect of parity status on δ15N: looking for the “pregnancy effect” in 18th and 19th century London. J Archaeol Sci 37:3191–3199
Nitsch EK, Humphrey LT, Hedges REM (2011) Using stable isotope analysis to examine the effect of economic change on breastfeeding practices in Spitalfields, London, UK. Am J Phys Anthropol 146:619–628
Nusbacher AJS (2000) Civil supply in the civil war: supply of victuals to the New Model Army on the Naseby campaign, 1–14 June 1645. Engl Hist Rev 115:145–160
O’Connell TC, Hedges REM (1999) Isotopic comparison of hair and bone: archaeological analyses. J Archaeol Sci 26:661–665
O’Connell TC, Hedges REM (2001) Isotopic comparison of hair, bone and nail: modern analyses. J Archaeol Sci 28:1247–1255
O’Connell TC, Kneale CJ, Tasevska N, Kuhnle GGC (2012) The diet-body offset in human nitrogen isotopic values: a controlled dietary study. Am J Phys Anthropol 149:426–434
O’Leary MH (1981) Carbon isotope fractionation in plants. Phytochemistry 20:553–567
Oddy DJ (1970) Working-class diets in late nineteenth-century Britain. Econ Hist Rev 23(2):314–323
Olsen K (1999) Daily life in 18th-century England. Greenwood Publishing Group, Westport
Perini M, Camin F, Bontempo L, Rossmann A, Piasentier E (2009) Multielement (H, C, N, O, S) stable isotope characteristics of lamb meat from different Italian regions. Rapid Commun Mass Spectrom 23:2573–2585
Perren R (2000) The marketing of agricultural products: farm gate to retain store. In: Collins EJT, Thirsk J (eds) The agrarian history of England and Wales: volume VII 1850–1914 (part II). Cambridge University Press, Cambridge, pp 953–999
Pinhasi R, Shaw P, White B, Ogden AR (2006) Morbidity, rickets and long-bone growth in post-medieval Britain—a cross-population analysis. Ann Hum Biol 33:372–389
Privat K, O’Connell T, Neal K, Hedges R (2005) Chapter 6: fermented dairy product analysis and palaeodietary repercussions: is stable isotope analysis no cheesy enough? In: Mulville J, Outram AK (eds) The zooarchaeology of fats, oils, milk and dairying, Proceedings of the 9th conference of the International Council of Archaeozoology, Durham, August 2002. Oxbow Books
Quintelier K, Ervynck A, Müldner G, Van Neer W, Richards MP, Fuller BT (2014) Isotopic examination of links between diet, social differentiation, and DISH at the post-medieval Carmelite Friary of Aalst, Belgium. Am J Phys Anthropol 153:203–213
Radini A, Nikita E, Shillito LM (2016) Human dental calculus and a medieval urban environment. In: Jervis B, Broderick LG, Sologestoa IG (eds) Objects, environment, and everyday life in medieval Europe. Brepols Publishers, Turnhout, pp 297–313
Radini A, Nikita E, Buckley S, Copeland L, Hardy K (2017) Beyond food: the multiple pathways for inclusion of materials into ancient dental calculus. Am J Phys Anthropol 162(Suppl 63):71–83
Radini A, Tromp M, Beach A, Tong E, Speller C, McCormick M, Dudgeon JV, Collins MJ, Rühli F, Krӧger R, Warinner C (2019) Medieval women’s early involvement in manuscript production suggested by lapis lazuli identification in dental calculus. Science Advances 5(1):eaau7126
Raynor LA, Kennett DJ (2008) Dietary variability among a sample of United States soldiers during the War of 1812. Hist Archaeol 42:76–87
Reilly K. (2014) Assessment: Faunal Remains In: Prescot Street The Assessment Reports (online), Morse C and Hunt G (eds), https://www.lparchaeology.com/prescot/about/assessment-faunal-remains. Accessed: 29 April 2018
Reitsema LJ (2013) Beyond diet reconstruction: stable isotope applications to human physiology, health, and nutrition. Am J Hum Biol 25:445–456
Reitsema LJ, Vercellotti G (2012) Stable isotope evidence for sex- and status-based variations in diet and life history at medieval Trino Vercellese, Italy. Am J Phys Anthropol 148:589–600
Reitsema LJ, Kozłowski T, Crews DE, Katzenberg MA, Chudziak W (2017) Resilience and local dietary adaptation in rural Poland, 1000–1400 CE. J Anthropol Archaeol 45:38–52
Richards M (2006) Paleodietary reconstruction. In: Brickley M, Buteaux S, Adams J, Cherrington R (eds) St Martin’s uncovered: investigations in the churchyard of St Martin's-in-the-Bull Ring, Birmingham, 2001. Oxbow Books, Oxford, pp 147–151
Richards MP, Hedges REM (1999) Stable isotope evidence for similarities in the types of marine foods used by late mesolithic humans at sites along the Atlantic Coast of Europe. J Archaeol Sci 26:717–722
Richardson B, (2010) Assessment: Leather In: Prescot Street The Assessment Reports (online), Morse C and Hunt G (eds). https://www.lparchaeology.com/prescot/about/assessment-leather. Accessed: 29 April 2018
Riggs P (1994) The standard of living in Scotland, 1800–1850. In: Stature, living, standards and economic development: essays in anthropometric history. Chicago, pp 60–75
Rink OA (1986) Holland on the Hudson: an economic and social history of Dutch New York. Cornell University Press, London
Roberts C, Manchester K (2005) The archaeology of disease, 3rd edn. Cornell University Press, New York
Roberts P, Weston S, Wild B, Boston C, Ditchfield P, Shortland AJ, Pollard AM (2012) The men of Nelson’s navy: a comparative stable isotope dietary study of late 18th century and early 19th century servicemen from Royal Naval Hospital burial grounds at Plymouth and Gosport, England. Am J Phys Anthropol 148:1–10
Rogers N (2007) The press gang: naval impressment and its opponents in Georgian Britain. Continuum Books, London
Rogers J, Waldron T (2001) DISH and the monastic way of life. Int J Osteoarchaeol 11:357–365
Rowbotham J, Clayton P (2008) An unsuitable and degraded diet? Part three: Victorian consumption patterns and their health benefits. J R Soc Med 101:454–462
Satchell AEM, Kitson PK, Newton GH, Shaw-Taylor L, Wrigley EA (2016) 1851 England and Wales census parishes, townships and places. [data collection]. UK Data Archive, Colchester, Essex. https://doi.org/10.5255/UKDA-SN-852232
Savoy Chapel Burial Records (1680–1854) Anglican parish registers Westminster archives
Schmidt O, Quilter JM, Bahar B, Moloney AP, Scrimgeour CM, Begley IS, Monahan FJ (2005) Inferring the origin and dietary history of beef from C, N and S stable isotope ratio analysis. Food Chem 91:545–549
Schoeninger MJ, DeNiro MJ (1984) Nitrogen and carbon isotopic composition of bone collagen from marine and terrestrial animals. Geochim Cosmochim Acta 48:625–639
Schoeninger MJ, Moore K (1992) Bone stable isotope studies in archaeology. J World Prehist 6:247–296
Schoeninger MJ, DeNiro MJ, Tauber H (1983) Stable nitrogen isotope ratios of bone collagen reflect marine and terrestrial components of prehistoric human diet. Science 220:1381–1383
Schwarcz HP, Schoeninger MJ (2011) Stable isotopes of carbon and nitrogen as tracers for paleo-diet reconstruction. In: Baskaran M (ed) Handbook of environmental isotope geochemistry, advances in isotope geochemistry Vol I
Schwarcz HP, Dupras TL, Fairgrieve SI (1999) 15N enrichment in the Sahara: in search of a global relationship. J Archaeol Sci 26:629–636
Sealy J, Johnson M, Richards M, Nehlich O (2014) Comparison of two methods of extracting bone collagen for stable carbon and nitrogen isotope analysis: comparing whole bone demineralization with gelatinization and ultrafiltration. J Archaeol Sci 47:64–69
Sibun L, Ponce P (2018) In life and death. In: Archaeological excavations at the Queen’s Chapel of the Savoy, London, monograph 17. Spoilheap Publications
Smith E (1864) The food of the poorer labouring classes in England. In: Sixth report of the medical officer of the Privy Council. House of Commons, London, UK, pp 216–329
Somerville R (1960) The Savoy: manor, hospital, chapel. Duchy of Lancaster
Spencer RK (2008) Testing hypotheses about diffuse idiopathic skeletal hyperostosis (DISH) using stable isotope and aDNA analysis of late medieval British populations, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/1339/
Strype J (1720) Chapter VII: liberties of the Dutchy of Lancaster, Survey of London Volume II, Book 4, hriOnline, Sheffield, https://wwwdhiacuk/strype/ Accessed 25 January 2019
The Privy Council, Great Britain (1757) Regulations and instructions relating to his Majesty’s service at sea, London
Thirsk J (2007) Food in early modern England: phases, fads, fashions, 1500–1760. Hambledon Continuum Press, London
Thompson AH, Wilson AS, Ehleringer JR (2014) Hair as a geochemical recorder: ancient to modern. In: Cerling TG (ed) Treatise on geochemistry, 2nd edn. Elsevier, New York, pp 371–392
Thornbury W (1878a) The Savoy. In: Old and new London, vol volume 3. Cassell, Petter and Galpin, London, pp 95–100
Thornbury W (1878b) 'The metropolitan meat-market', in Old and new London: Volume 2 (London), pp. 491–496. British History Online http://www.british-history.ac.uk/old-new-london/vol2/pp491-496 [accessed 28 June 2019]
Trickett MA (2006) A tale of two cities: diet, health and migration in post-medieval Coventry and Chelsea through biographical reconstruction, osteoarchaeology and isotope biogeochemistry. University of Durham. Durham e-theses, http://etheses.dur.ac.uk/1330/ Accessed: 10 November 2018
Tsutaya T, Yoneda M (2015) Reconstruction of breastfeeding and weaning practices using stable isotope and trace element analyses: a review. Am J Phys Anthropol 156(Suppl 59):2–21
Turner ME, Beckett JV, Afton B (2001) Farm production in England 1700–1914. Oxford University Press, Oxford
Ubelaker D, Owsley D (2003) Isotopic evidence for diet in the seventeenth-century colonial Chesapeake. Am Antiq 68:129–139
Vale B (2008) The conquest of scurvy in the Royal Navy 1793–1800: a challenge to current orthodoxy. Maritme Mirror 94:160–175
van der Sluis LG, Hollund HI, Kars H, Sandvik PU, Denham SD (2016) A palaeodietary investigation of a multi-period churchyard in Stavanger, Norway, using stable isotope analysis (C, N, H, S) on bone collagen. J Archaeol Sci Rep 9:120–133
van Klinken GJ (1999) Bone collagen quality indicators for palaeodietary and radiocarbon measurements. J Archaeol Sci 26:687–695
Varney TL (2011) The Royal Naval Hospital at English Harbour, Antigua: not just the “grave of the Englishman”. Proceedings of the XXII International Congress for Caribbean Archaeology, Antigua 2009:447–459
Verlaan JJ, Oner FC, Maat GJ (2007) Diffuse idiopathic skeletal hyperostosis in ancient clergymen. Eur Spine J 16:1129–1135
Waldron T (1985) DISH at Merton Priory: evidence for a “new” occupational disease? Br Med J 291:1762–1763
Wang TT, Fuller BT, Wei D, Chang XE, Hu YW (2016) Investigating dietary patterns with stable isotope ratios of collagen and starch grain analysis of dental calculus at the Iron age cemetery site of Heigouliang, Xinjiang, China: dietary patterns at Heigouliang cemetery. Int J Osteoarchaeol 26:693–704
Warinner C, Hendy J, Speller C, Cappellini E, Fischer R, Trachsel C, Arneborg J, Lynnerup N, Craig OE, Swallow DM, Charlton S, Mackie M, Canci A, Bouwman A, Rühli F, Gilbert MTP, Collins MJ (2014) Direct evidence of milk consumption from ancient human dental calculus. Sci Rep 4:7104
Warinner C, Speller C, Collins MJ (2015) A new era in palaeomicrobiology: prospects for ancient dental calculus as a long-term record of the human oral microbiome. Philos Trans R Soc Lond Ser B Biol Sci 370:20130376
Webb E, White C, Longstaffe F (2013) Dietary shifting in the Nasca region as inferred from the carbon- and nitrogen-isotope compositions of archaeological hair and bone. J Archaeol Sci 40:129–139
Weyrich LS, Dobney K, Cooper A (2015) Ancient DNA analysis of dental calculus. J Hum Evol 79:119–124
Williamson T (2002) The transformation of rural England: farming and the landscape, 1700–1870. University of Exeter Press
Wilson AS, Cadwallader L (2010) Individuals with surviving hair. In: Connell B, Miles A (eds) The City Bunhill burial ground, Golden Lane, London, MOLA archaeology study series. Museum of London, pp 49–52
Wilson AS, Taylor T, Ceruti MC, Chavez JA, Reinhard J, Grimes V, Meier-Augenstein W, Cartmell L, Stern B, Richards MP, Worobey M, Barnes I, Gilbert MTP (2007) Stable isotope and DNA evidence for ritual sequences in Inca child sacrifice. Proc Natl Acad Sci U S A 104:16456–16461
Woodward D (1973) The Anglo-Irish livestock trade of the seventeenth century. Ir Hist Stud 18:489–523
Woodward DM (1977) A comparative study of the Irish and Scottish livestock trades in the seventeenth century. In: Cullen LM, Smout TC (eds) Comparative aspects of Scottish and Irish economic and social history, 1600–1900. John Donald Publishers Ltd., Edinburgh, pp 148–166
Acknowledgements
The authors are grateful to Louise Rayner (Archaeology South-East) for help in accessing the Queen’s Chapel of the Savoy collection and to Malin Holst and Dr. Sophy Charlton (University of York) for their aid in sampling. Thanks also to Guy Hunt and Matt Law (LP Archaeology) for granting analysis of the Prescot Street material. We are also grateful to Sarah Delaney, Connor Jones and Matthew Von Tersch (BioArCh, University of York) for invaluable assistance with sample processing and mass spectrometry and to Marise Gorton (Stable isotope Laboratory, University of Bradford). Our thanks to Dr. Sarah Goldsmith and Dr. Mark Jenner for their assistance in researching the site history of St Barnabas/St Mary Abbot (supported by a Wellcome Trust Seed award [ref: 108375/Z/15/Z] awarded to Dr. Camilla Speller). Funding for this project was provided by the Centre for Chronic Diseases and Disorders (C2D2) Research Priming Fund grant to Dr. Michelle Alexander. C2D2 is part-funded by the Wellcome Trust [ref: 097829/Z/11/A]. This work was also supported by the Leverhulme Trust, through a Philip Leverhulme prize to Dr. Camilla Speller. A portion of the time spent by Dr. Anita Radini on this project was also funded by a Wellcome Trust Research Fellowship in Medical Humanities [ref: 209869/Z/17/Z]. We are also thankful to Dr. Helen Goodchild (University of York), Hans Sell, Dr. Patrick Roberts and Ayushi Nayak (MPI-SHH, Jena) for their assistance with the figures and to Dr. Jessica Hendy (MPI-SHH, Jena) for proofreading the paper.
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Bleasdale, M., Ponce, P., Radini, A. et al. Multidisciplinary investigations of the diets of two post-medieval populations from London using stable isotopes and microdebris analysis. Archaeol Anthropol Sci 11, 6161–6181 (2019). https://doi.org/10.1007/s12520-019-00910-8
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DOI: https://doi.org/10.1007/s12520-019-00910-8