The Interplay of Scientific and Historical Evidence by
Eric Ribbens and Andrew C. Lydeard
Department of Biological Sciences
Western Illinois University, Macomb, IL
Was President Thomas Jefferson the father of Sally Hemings’s children?

• Third president of the
United States (1800-
1807).
• Wrote the Declaration of
Independence.
• Very influential political and philosophical thinker.
• Born 1743, died 1826.
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• Married Martha Wayne Skelton when he was 29 (her second marriage).
• Jefferson was widowed 10 years later, when she died four months after giving birth to their sixth child.
• Children of Thomas and Martha:
– Martha (lived to adulthood, had 11 children)
– Jane Randolph (died as infant)
– an unnamed son (died as infant)
– Mary (lived to adulthood, 1 child who lived)
– Lucy Elizabeth (died as infant)
– Their last child, also named Lucy Elizabeth, who died at the age of two of whooping cough.
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• The child of a black slave and Martha’s father (a white plantation owner), Sarah (“Sally”) Hemings became part of Monticello when Jefferson bought out his father-in-law’s estate.
• In 1787, she was chosen to travel to Paris with
Jefferson’s daughter Mary to join her father, who was serving as U.S. Ambassador to France. Sally was 14 (Jefferson was 44). She stayed in Paris two years, and returned to Monticello. (She could have legally stayed in France as a free person).
• Shortly after returning home, Sally gave birth to a child, who soon died.
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A. Yes
B. No
C. Could be, but we need more evidence
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• Harriet Hemings
– Born October 5, 1795 - died December 7, 1797
• Beverley Hemings (possibly William Beverley H.)
– Born April 1, 1798 - died after 1873
• unnamed daughter (possibly named Thenia)
– Born in 1799 and died in infancy
• Harriet Hemings
– Born May 22, 1801 – died after 1863
• Madison Hemings (possibly named James Madison Hemings)
– Born January 19, 1805 – died in 1877
• Eston Hemings (possibly named Thomas Eston Hemings)
– Born May 21, 1808 – died in 1856
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Political journalist James T. Callender, a disaffected former ally of Jefferson, wrote in a Richmond newspaper that Jefferson had for many years "kept, as his concubine, one of his own slaves." "Her name is Sally,"
Callender continued, adding that Jefferson had "several children" by her.
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• Suspicions since the early 1800s.
• Steadfastly denied by the Jefferson-Wayles descendants, and by historians.
• Interesting evidence of Jefferson treating Sally’s children differently (freeing some in his will, for example).
• Based on assertions by two of Jefferson's grandchildren after his death, for 180 years historians concluded that Peter or especially
Samuel Carr (Jefferson’s nephews) were the likely father(s) of all Sally Hemings' children.
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• DNA is the same for most cells in the body.
Therefore, it is possible to compare a sample of unknown DNA against a person to evaluate if the two samples match.
• However, because every person is a unique combination of DNA, it is much harder to trace DNA patterns between different people, such as in family lineages.
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• Mitochondria have their own
DNA.
• Sperm does not have much of anything except a nucleus with
DNA, so you inherit your mitochondria from your Mom.
• Thus, your mitochondrial DNA is the same as your siblings, is the same as your mother, is the same as your grandmother, etc.
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CQ#2: If the man on the top right has the same mitochondrial DNA as the woman on the top left, what can we conclude about them?
A. Nothing.
B. They are probably siblings.
C. They are the parents of the “blue” children.
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A. Yes
B. No
C. Could be, but we need more evidence
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• Only males have one, and they get it from their Dad.
• So a guy’s Y chromosome is the same as his Dad’s, as his grandfather’s, greatgrandfather’s …; and his brothers, paternal uncles, etc., also have the same Y chromosome.
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CQ#4: Which of these Jefferson men should have a different Y chromosome?
A. The grandfather
B. The father
C. The uncle
D. Samuel Carr
E. Thomas Jefferson
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CQ#5: What possible DNA evidence could be found, 180 years later, to help determine who was the father of Sally’s child Eston?
A. They could exhume DNA from Thomas Jefferson and compare it to descendants of Sally Hemings.
B. Mitochondria are passed from mother to child, so the father is not involved and there is no genetic recombination of mitochondria. They could compare mitochondrial DNA of female descendants of Sally
Hemings and of Martha Wayles (Jefferson’s wife).
C. Y chromosomes are passed from father to child, so the mother is not involved. They could compare Y chromosomes of male descendants of Sally’s male child Eston to Jefferson males.
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• Thomas Jefferson only had two girls with
Martha, so descendants of Martha do NOT have Jefferson’s Y chromosome.
• Can you think of a solution? Hint: Look at the chart with Jefferson males marked.
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• Thomas Jefferson only had two girls with
Martha, so descendants of Martha do NOT have Jefferson’s Y chromosome.
• Solution: Look at some males in the descendants of Thomas’s uncle, Field
Jefferson. (Since Field and Thomas’s Dad were brothers, Thomas and Field should have had the same Y chromosome.)
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Five “Field Jefferson” males:
• J41 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J42 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J47 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J49 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J50 0000001 15,12,4,11,3,9,11,10,16,13,7 (3)5, (1)14, (3)32, (4)16
“Eston Heming” male:
• H21 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
“Samuel Carr” males:
• C27 0000011 14,12,5,12,3,10,11,10,13,13,7 (1)17, (3)36, (4)21
• C29 0000011 14,12,5,11,3,10,11,10,13,13,7 (1)17, (3)37, (4)21
• C31 0000011 14,12,5,12,3,10,11,10,13,13,7 (1)17, (3)36, (4)21
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• Jefferson’s uncle Field: five descendants Y DNA
• Sally’s son Eston: one descendant Y DNA
• Samuel Carr: three descendants Y DNA
• Results:
– Field matches Eston
– Field does not match Samuel
– Eston does not match Samuel
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A. Yes
B. No
C. Could be, but we need more evidence
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• Even though he was deeply in debt,
Jefferson freed all of Sally Hemings’s children: Beverly, Harriet, Madison, and
Eston, as they came of age. Three of the four entered white society as adults (they were 3/4 white), and their descendants were identified as white.
• Sally Hemings herself was withheld from auction when Thomas Jefferson died in
1826 and was freed by Jefferson’s daughter, Martha Jefferson Randolph. Sally
Hemings lived her last nine years with her two younger sons in Charlottesville, and saw a grandchild born in the house her sons owned. She died in 1835 at the age of
52.
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The Woodsons claim they are descendants of
Thomas Jefferson (they claim Sally had another boy named Tom, from whom they are descended). Five
Woodsons were tested:
Jeffersons:
• J42 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J47 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J49 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
• J50 0000001 15,12,4,11,3,9,11,10,16,13,7 (3)5, (1)14, (3)32, (4)16
Woodsons:
• W55 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W56 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W69 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W70 1110001 17,12,6,11,3,11,8,10,11,14,6 (0)1, (3a)3, (1a)11, (3a)30, (4a)14, (4)2
• W61 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)28, (4)20
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A. W55 does not have Jefferson’s y chromosome
B. W56 does not have Jefferson’s y chromosome
C. W69 does not have Jefferson’s y chromosome
D. W70 does not have Jefferson’s y chromosome
E. None of them have Jefferson’s y chromosome, and W70 had a completely different ancestor
Woodsons:
• W55 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W56 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W69 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)27, (4)21
• W70 1110001 17,12,6,11,3,11,8,10,11,14,6 (0)1, (3a)3, (1a)11, (3a)30, (4a)14, (4)2
• W61 0000011 14,12,5,11,3,10,11,13,13,13,7 (1)16, (3)28, (4)20
Jeffersons:
• J42 0000001 15,12,4,11,3,9,11,10,15,13,7 (3)5, (1)14, (3)32, (4)16
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• The 1998 study concluded that the descendant of
Eston Hemings had a Y-chromosome that matched the
Y-chromosome of the Jefferson male line. Given historic evidence supporting Thomas Jefferson's paternity, according to the report of the study in the journal Nature, the team concluded Jefferson was the likely father of Eston, and probably the other Hemings children.
• Eight weeks later, in the journal Science, Foster made it clear that the data establish only that “Thomas
Jefferson was one of several candidates for the paternity of Eston Hemings.”
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The Thomas Jefferson Heritage
Society:
– 2001: published a report, in which they concluded there was insufficient evidence to determine that Jefferson was the father of
Hemings's children.
– Suggested that younger brother
Randolph Jefferson was the father, and that Sally Hemings may have had multiple sex partners. They emphasized that more than 20 Jefferson males lived in Virginia in the late 1700s.
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A. Yes
B. No
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The new scientific evidence has been correlated with the existing documentary record, and a consensus of historians and other experts who have examined the issue agree that the question has largely been answered: Thomas Jefferson fathered at least one of Sally Hemings’s children, and quite probably all six. The language of "proof" does not translate perfectly from science and the law to the historian's craft, however. And the
DNA findings in this case are only one piece of a complicated puzzle that many in previous generations worked hard to make sure we might never solve.
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Slide 1: Official Presidential portrait of Thomas Jefferson (by Rembrandt Peale, 1800), http://commons.wikimedia.org/wiki/File:Official_Presidential_portrait_of_Thomas_Jefferson_%28by_Rembrandt_Peale,_1800%29.jpg
.
Slide 2: Thomas Jefferson (by John Trumbull, 1788), http://commons.wikimedia.org/wiki/File:Thomas_Jefferson_by_John_Trumbull.jpg
.
Slides 4, 8, 16, 20, 25: Family tree images by NCCSTS.
Slides 12–15: http://ghr.nlm.nih.gov/handbook/illustrations/mitochondrial .
These images are works of the National Institutes of Health, part of the United States Department of Health and Human Services.
Slide 24, top image: Image of nickel obverses from Wikimedia Commons, http://commons.wikimedia.org/wiki/File:NickelObverses.jpg
.
Slide 24, bottom image (book cover): from Amazon.com
Lanier, Shannon, and Jane Feldman. Jefferson's Children: The Story of One American Family. New York: Random House, 2000.
Slide 29, book cover: from Amazon.com
Wills, Garry. "Negro President": Jefferson and the Slave Power. Mariner Books, 2005.
Slide 31, book cover: from Amazon.com
Hyland Jr, William G. In Defense of Thomas Jefferson: The Sally Hemings Sex Scandal. Thomas Dunne Books, 2009.
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