According to new findings by researchers from Harvard University, there could be more than one million three hundred thousand individuals living today who share their genetic material with some of the original colonists of Maryland in the United States, as shown in an innovative genetic study titled ‘The genetic legacy of the 17th-century colonial capital of St. Mary’s City’ in Current Biology. This scientific work examined genetic material recovered from the bones of 49 colonists buried at the site of St. Mary’s City, the first permanent colony of the English in the US, established in 1634. The genetic analysis uncovered ancestry and migration information related to the west of England, Wales, and Ireland.
DNA study uncovers genetic links to Maryland’s first settlers
The investigation involved the examination of skeletons unearthed from Chapel Field cemetery at Historic St. Mary’s City, which saw colonists being interred from 1634 to 1730. Researchers utilized archaeological information together with contemporary genetics to chart the relationships between the colony and over one million current descendents.The results of the study conducted by researchers and published in Current Biology indicated that researchers were able to discover over 1.3 million present-day genetic relatives by comparing their data against those of over 11.5 million people in the 23andMe dataset. The majority of the colonists had a considerable genetic affinity to western England and Wales, although some exhibited Irish heritage.According to Éadaoin Harney, senior scientist at the Institute, the results highlight “the utility of ancient DNA studies to help bridge gaps in history.”
Researchers may have identified Maryland’s Governor Thomas Greene
One of the most the impressive findings includes the potential recognition of the second colonial governor of Maryland, Thomas Greene, along with other members of his family. Scientists relied on a novel genetic model of identity by descent, complemented with data from family trees, to reduce the number of potential identities of unidentified remains.“This is the first time that ancient DNA has been used to identify individuals whose identity had not been previously known,” Harney noted in a press release issued by the 23andMe Research Institute.Additionally, the research provided confirmation for burials associated with the prominent Calvert family, which included Philip Calvert, the fifth colonial governor of Maryland. This finding is of historical importance since several members of the Calvert family perished in St. Mary’s during the colonial era. Ancient DNA provides insights into the movement of people throughout
Ancient DNA reveals migration patterns across America
Apart from familial relationships, the study identified patterns of migration reaching centuries into the future. Genetic data showed significant similarities between the descendants of Maryland Catholics and communities in Kentucky, corroborating historic accounts of mass migration after the American Revolutionary War.Experts say poverty and religious discrimination were the reasons why most Marylanders migrated between 1780 and 1820. According to Harney, finding such a genetic signature in connection with a historically known migration route underlines the power of DNA sequencing along with genealogical information.David Reich, professor of genetics at Harvard Medical School and co-senior author of the paper of the Ancestry and descendants of African Americans buried at Catoctin Furnace, says, even in cases where there is plenty of written history, genetic studies may yet produce “surprises.”
Why the Maryland DNA discovery matters
With these findings, we now get a unique glimpse into the lives of early English settlers in America and learn about the influence science is having on the historical discipline. It is possible to discover lost identities and trace the movements of people for hundreds of years thanks to genetics, archaeology, and the use of historical documents.In the year when the nation is celebrating its 250th anniversary, it is interesting to point out how this study shows an ever-increasing interest among Americans in their ancestral roots and background. This study, which began by identifying 49 bodies found in St. Mary’s City, has come to involve millions of Americans in one of America’s oldest communities.
