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

Revolutionary War Remains Identified Through Genetic Analysis After More Than Two Centuries

A Teenager’s Journey from Unknown Soldier to Historical Figure

DNA from bones on a Revolutionary – For nearly a quarter of a millennium, Pvt. John Pumphrey remained an anonymous casualty of the American Revolution. Now, through innovative DNA analysis combined with traditional archival research, the young Maryland soldier who perished during one of the conflict’s final major engagements has been given his name back. This identification arrives at a particularly meaningful moment, coinciding with the approaching 250th anniversary of American independence—a nation he helped defend through his service and sacrifice.

Allison Peacock, who established FHD Forensics and assisted in the identification effort, expressed her satisfaction with the timing. “There was a sense of divine timing, I guess,” she remarked. “I don’t know what else you want to call it.” The Maryland teenager lost his life on August 16, 1780, during the Battle of Camden in South Carolina. This engagement represented one of the most crushing setbacks for the Continental Army, as British forces commanded by General Charles Lord Cornwallis decisively defeated patriot troops led by Major General Horatio Gates.

Archaeological Discovery and Forensic Investigation

Following the battle, approximately 900 soldiers fell in combat and were left where they died, exposed to scavenging wildlife, intense South Carolina temperatures, and oppressive humidity. When archaeologists began surveying the battlefield in 2020, they discovered human skeletal remains emerging from the earth. Ultimately, fourteen distinct sets of remains were cataloged, with twelve confirmed as Continental soldiers. The remaining two were identified as British combatants and subsequently reburied at the historic site.

The Richland County Coroner’s Office, which had previously collaborated with Texas-based FHD Forensics on contemporary cases, requested assistance with these historical remains. Peacock began referring to the mystery as “America’s oldest John Doe.” She explained that their methodology mirrored standard procedures: “What we did is pretty much the same as what we do with any other John Doe case.” While uncertainty existed regarding whether viable genetic profiles could be obtained from remains exceeding 240 years in age, fortune favored their efforts.

Unlike many of his fallen comrades, Pumphrey and four fellow soldiers received a modest burial beneath a thin covering of soil. He was designated “Camden 9B,” indicating he was the second set of remains recovered from burial number nine. After thorough examination and documentation, the twelve Continental soldiers were reinterred with complete military honors. Pumphrey’s original headstone bore only the inscription: “UNKNOWN. REV WAR. BATTLE OF CAMDEN. AUG 16 1780.”

Breaking Through Genetic Barriers

Samples from two soldiers were transported to Astrea Forensics in California for DNA extraction and sequencing. Peacock noted the unusual challenge: “Typically, in a case like this, we work with teeth, because teeth are in the jaw and are protected, the roots are protected. In this case, they were just coming up with nothing on the teeth.” Kelly Harkins Kincaid, co-founder and scientific adviser at Astrea, explained the complications inherent in ancient samples. “It gets colonized by the microbial environment in the soil and the water in the environment,” she stated. Despite having processed DNA samples dating back 10,000 years, this represented the oldest material her company had attempted to use for family tree reconstruction.

From the petrous portion of the temporal bone—a fragile structure located behind the ear at the skull’s base—researchers successfully extracted three DNA categories: autosomal, X chromosome, and Y chromosome. Peacock’s team submitted these findings to FamilyTreeDNA and GEDmatch platforms. “We got 20,000 matches to work with,” she recalled. “So, it was a lot to kind of comb through.”

Uncovering a Young Soldier’s Story

Among the thousands of genetic matches, one connection emerged from the maternal line: Russ Hudson, a retired federal agent residing in Gettysburg, Pennsylvania. Hudson volunteered to conduct extensive archival research, helping to piece together Pumphrey’s life narrative. A portrait gradually formed of a young orphan from Maryland’s Anne Arundel County, displaced and seeking purpose. Hudson shared, “I learned that probably when he was 13, he went to Baltimore and he enlisted in the militia. 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 at enlistment. He signed his re-enlistment documents with an “X” rather than his full name. However, Peacock observed that he remained young enough that his knee growth plates had not completely closed at the time of death.

Current research confirms that Pumphrey and his fellow 7th Maryland Regiment soldiers accompanied George Washington through the harsh winter at Valley Forge, Pennsylvania. His unit participated in several pivotal Northern Theater engagements, 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. “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 noted. “It’s possible that he had a soft tissue injury, like a bayonet injury, but the evidence was insufficient to confirm this definitively.”