The Jefferson–Hemings Paternity Question: DNA Evidence and Scientific Review
The purpose of this site is to review the full scientific, documentary, and historical record relating to the relationship between Thomas Jefferson and the enslaved Sally Hemings – without presumption or ideology – and to promote careful historical inquiry, grounded in evidence, context, and intellectual honesty. This site applies the same standard of scrutiny used in wrongful conviction reviews: examining all plausible suspects, not just the presumed one. Among the 22 Jefferson males alive at the time, Randolph Jefferson, the little-known younger brother of Thomas Jefferson, emerges as a suspect.
2026 Update: A court petition has been filed in Nashville, Tennessee seeking authorization to obtain DNA from a direct male-line descendant of Randolph Jefferson — filling the evidentiary gap left by the 1998 study.
Over a quarter of a century has passed since the original DNA study, published on November 5, 1998 in the scientific journal Nature, which forms the basis of the prevailing consensus. The piece was published under the editorial title Jefferson Fathered Slave’s Last Child — a conclusion the study's own data did not support. In a companion article titled Founding Father, historian Joseph Ellis and Eric Lander echoed the incorrect assertion with the subheading: DNA analysis confirms that Jefferson was indeed the father of at least one of Hemings' children. Four days later, however, the lead author of the DNA study, Dr. Eugene Foster, felt compelled to clarify and essentially repudiate the fundamentally misleading headline, writing in the New York Times that "the genetic findings my collaborators and I reported in the scientific journal Nature do not prove that Thomas Jefferson was the father of one of Sally Hemings children. We never made that claim." And two months later, on January 7, 1999, Dr. Foster added in the scientific journal Nature itself that "It is true that men of Randolph Jefferson's family could have fathered Sally Hemings' later children."
Addressing a Scientific Gap in the Jefferson–Hemings Paternity Question
A court petition has been filed in Nashville, Tennessee, seeking authorization to obtain DNA samples from the grave of John Randolph Jefferson (1816–1845), the last son of Randolph Jefferson (1755–1815), the younger brother of Thomas Jefferson. Although his grave has never been found, Randolph Jefferson and his descendants were excluded from the 1998 DNA study, and no DNA from Randolph’s male line was ever collected or compared with DNA from descendants of Eston Hemings. Scientific critiques published in Nature pointed to this omission as a significant gap in the available data and analysis. The petition seeks to address that evidentiary gap by obtaining DNA from a Jefferson male line that was never examined in that prior study.
Our Approach: Respectful, Evidence-Based Inquiry
We approach this subject with respect for the humanity and dignity of the enslaved community at Monticello, and with fairness toward historical figures whose lives are often judged through a lens of modern values and assumptions.
What the Historical and Genetic Evidence Shows
DNA Findings and Their Interpretation
The 1998 DNA study established a Jefferson male-line connection, not Thomas Jefferson exclusively.
Other Jefferson males, such as Randolph Jefferson and his sons, were excluded from the study
Modern advancements in autosomal DNA technology and access to DNA from immediate descendants of paternity suspects will bring more clarity to narrow down the source of paternity
Eyewitness & Oral History Evidence
Edmund Bacon, Monticello’s overseer, who was working during the period of Eston Hemings' conception, said it was not Thomas Jefferson but another man he saw multiple times come out of Sally Hemings’ room: "I have seen him come out of her mother’s room many a morning when I went up to Monticello very early.”
Descendants of Eston Hemings passed down their oral history that their paternal ancestor was “Uncle” Jefferson. As Julia Westerinen recalled: “We were told we were related somehow to an uncle of Jefferson’s.” At Monticello, Randolph’s nickname was “Uncle.”
Documentary and Historical Records
Jefferson's brother Randolph Jefferson was at Monticello at the time of the conception of Sally Hemings' son Eston (the subject of the 1998 DNA study), and Randolph appeared at Monticello uninvited only 6 days after Eston's birth to enlist Thomas Jefferson’s assistance to draft his will.
Contemporary accounts suggest Randolph Jefferson had intimate social relationships within the Monticello slave community, including socializing with enslaved people at night and maintaining friendships with men who had relationships with other Hemings sisters.
Alternative Paternity Candidates:
Randolph Jefferson, Carr Nephews, and Others
Thomas Jefferson was not the only Jefferson male present at Monticello during key conception windows.
Randolph Jefferson, Thomas Jefferson’s younger brother, was invited to Monticello exactly 9 months and 9 days before the birth of Eston Hemings, and was a widower during many other conceptions.
The Carr nephews, sons of Jefferson’s sister, have long been identified in historical sources as possible fathers of Sally Hemings’ older children, including Madison Hemings, whose DNA was not compared in the 1998 study. Peter Carr in particular was repeatedly mentioned and even confessed on numerous occasions.