DNA from bones on a Revolutionary War battlefield solves the case of ‘America’s oldest John Doe’

Historical Mystery Solved: DNA Reveals Identity of Revolutionary War Soldier After Nearly Three Centuries

DNA from bones on a Revolutionary – For 246 years, Pvt. John Pumphrey remained an anonymous figure in American history. Now, through the combined efforts of modern DNA technology and traditional research methods, this Maryland teenager who perished during one of the final major engagements of the American Revolution has been given his rightful place in the annals of time. The identification arrives at a particularly meaningful moment, coinciding with the approaching 250th anniversary of the nation he helped establish.

A Battlefield Discovery

Pumphrey fell on August 16, 1780, during the Battle of Camden in South Carolina. This engagement represented one of the Continental Army’s most crushing losses, as British forces commanded by Gen. Charles Lord Cornwallis decisively defeated patriot troops led by Maj. Gen. Horatio Gates. Of the approximately 900 soldiers who lost their lives in this battle, many were left where they fell, exposed to the relentless South Carolina heat, devastating humidity, and the scavenging of wild animals.

Archaeologists conducting surveys of the battlefield in 2020 uncovered human skeletal remains emerging from the earth. Through careful examination, researchers identified 14 distinct sets of remains—12 belonging to Continental soldiers and two connected to British forces. The British remains were subsequently reburied at the historic site.

The DNA Breakthrough

The Richland County Coroner’s Office, which had previously collaborated with Texas-based FHD Forensics on contemporary cases, sought assistance for this historical identification. Allison Peacock, the company’s founder, began referring to the case as “America’s oldest John Doe.”

“What we did is pretty much the same as what we do with any other John Doe case,” she explained. “Nobody really knew for sure whether we could get genetic profiles suitable for a genealogy investigation on 240-plus year old remains. But we got lucky.”

Unlike most of the fallen soldiers, Pumphrey and four fellow comrades received a modest burial beneath a thin covering of soil. He received the designation “Camden 9B,” indicating he was the second set of remains recovered from burial number nine. His original headstone bore only the inscription: “UNKNOWN. REV WAR. BATTLE OF CAMDEN. AUG 16 1780.”

Samples from two soldiers were transported to Astrea Forensics in California for DNA extraction and sequencing. Kelly Harkins Kincaid, co-founder and scientific adviser at Astrea, noted the challenges involved.

“Typically, in a case like this, we work with teeth, because teeth are in the jaw and are protected, the roots are protected,” Kincaid stated. “In this case, they were just coming up with nothing on the teeth.”

She added that ancient remains often struggle with contamination: “It gets colonized by the microbial environment in the soil and the water in the environment.” Despite having worked with samples dating back 10,000 years, this represented the oldest material her company had ever attempted to use for family tree reconstruction.

Connecting Past to Present

From the petrous portion of the temporal bone—a delicate structure located behind the ear at the skull’s base—researchers successfully extracted three categories of DNA: autosomal, X chromosome, and Y chromosome. Peacock’s team submitted these results to both FamilyTreeDNA and GEDmatch platforms.

“We got 20,000 matches to work with,” Peacock reported. “So, it was a lot to kind of comb through.”

Among these matches, Russ Hudson—a retired federal agent residing in Gettysburg, Pennsylvania—offered his assistance with archival research. Through his efforts, a compelling profile emerged: a young orphan from Maryland’s Anne Arundel County, displaced and seeking his path in life.

“I learned that probably when he was 13, he went to Baltimore and he enlisted in the militia,” Hudson shared. “And who knows what his story was? What did he accomplish in order to become a member of the militia at such a young age?”

Without a surviving birth record, researchers cannot determine Pumphrey’s exact age when he entered military service. He signed his re-enlistment documents with an “X,” and skeletal analysis revealed that his knee growth plates had not yet fully closed at the time of his death, confirming his youth.

Historical records now place Pumphrey and his comrades from the 7th Maryland Regiment alongside George Washington during the harsh winter at Valley Forge, Pennsylvania. His unit participated in several pivotal engagements in the Northern Theater, including the battles of Brandywine, Germantown, and Monmouth. Peacock estimates he traveled approximately 1,000 miles before meeting his fate in South Carolina’s pine forests.

Regarding his cause of death, Peacock noted that no specific injury was discovered on his remains. “We don’t really know what John Pumphrey’s cause of death was because they did not find a particular injury on his body,” she said. “It’s possible that he had a soft tissue injury, like a bayonet injury, but without further evidence, the exact circumstances remain uncertain.”

This remarkable identification not only honors Pvt. Pumphrey’s memory but also demonstrates the extraordinary potential of combining ancient DNA analysis with genealogical research to illuminate the stories of those who came before us.