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DNA. DNA is material that governs the inheritance of eye color, hair color, stature, bone density, and many other human and animal traits. Persons Tested. Since Thomas Jefferson himself had no known legitimate male descendants (his wife Martha bore six children between 1772 and her death in 1782, but only two daughters lived to adulthood), a direct comparison between his and Sally Hemings' offspring could not be made. Dr. Eugene Foster, a retired UVA pathologist, therefore analyzed DNA from other male members of the Jefferson clan and compared them with samples from Sally Heming's male descendants to see if a Jefferson fathered them.
Dr. Foster conducted DNA tests on 5 male line descendants of 2 sons of Thomas
Jefferson's paternal uncle, Field Jefferson, and 5 male line descendants of 2
sons of Thomas Woodson, including Thomas, Sally Hemings' first child
(1790-1879), 1 male line descendant of Eston, Sally Hemings' last child
(1808-1852), and 3 male line descendants of 3 sons of John Carr (grandfather of
Samuel and Peter Carr, or Jefferson's nephews), long thought by the
acknowledged Thomas Jefferson descendants to have been responsible for Sally
Heming's children. For good measure, a panel of white descendants of
Monticello's neighbors were also tested in case their forefathers might have
contributed to Sally Heming's offspring.
This particular scientific inquiry on the Madison Hemings would be interesting because results from the DNA tests should confirm 1 of 3 things: (i) if there is no match then their claim that Madison is a descendant of Thomas Jefferson would be invalid (and then this would fall into the same category as the Woodson oral history which DNA indicated there was no Jefferson/Woodson match), (ii) it could show a Carr/Madison descendant match, thus our claim would be valid that one of the Carr brothers is the father of Sally's children (at least for Madison), or (iii) as in the case of Madison's brother, Eston, who was found to have a match with "some" Jefferson descendant (not necessarily Thomas), this match could repeat that finding. However such finding would not rise to the level of clear and convincing evidence that is required under current applicable paternity laws since any one of 8 Jeffersons could have been the father of Madison and there would be nothing to indicate it was Thomas. Such a study would, however, significantly advance scientific understanding of the Hemings paternity issues.
The William Hemings gravesite has long been forgotten by other Hemings family
members. At first the Hemings claimed not to know its location. Then the
Hemings questioned whether this was really William's grave, until Mr. Barger
provided irrefutable evidence. If the Hemings oral histories are so good, why
don't they know where their ancestors are buried? One of the first, most basic
things a family does is honor the burial place of their ancestors. That comes
before any elaborate oral tradition. Native Americans have a very rich oral
history culture. They know where their sacred grounds are and where their
burial grounds are over several generations. It is sometimes risky to cross
from one culture to another, but it seems safe to say that honoring family
burial places is a near universal human trait. Some cultures, such as in
India, cremate their dead and scatter the ashes, but I suspect it would be
difficult to find a culture that buries their dead and then ignores the grave
sites of their ancestors. That comes before any elaborate oral tradition.
A human being's DNA consists of 23 chromosomes. In male descendants, 22 of those chromosomes change with every generation, because each generation represents the coming together of a male and a female, which results in a new combination for these 22 chromosomes at each conception. When testing for paternity, there are therefore two different kinds of tests that can be run. A son's entire 23 chromosomes can be tested to determine whether the son is the product of his father. However, this test will be specific to the father, and any other male in his family will not yield the same results. Father and grandson (or any other lineal descendant) will not work, because although the Y chromosome will be the same, all the other chromosomes will have changed because in each instance the father combines with a new mother, which mixes up the 22 chromosomes. The blood and DNA tests conducted in the Jefferson-Hemings controversy can only be carried out on samples of the male Y chromosome because it passes unchanged from father to son. Since Thomas Jefferson's son died in infancy and he only had daughters who lived to maturity, it is impossible to definitively link any descendant of Thomas Jefferson to Thomas Jefferson himself using DNA alone. (This would be true even if Thomas Jefferson did have male descendants. Such male descendants would only have the Jefferson Y chromosome, which does not establish a specific link to Thomas. The presumptive link, of course, would be very persuasive). Also, recent DNA researchers of the Hemings line have sampled only direct male line descendants of persons who have descended from a common male line with Thomas Jefferson (e.g. grandfather).
If the acknowledged descendants of Thomas Jefferson submitted to DNA testing
the test would be futile because the only genetic test would be of the Y
chromosome. The acknowledged descendants of Thomas Jefferson are all descended
through Thomas Jefferson's daughter, not the male line. Thus they would have
the Y chromosome from their male lines, not the same Y chromosome as any
Jefferson. For example, a son of Martha would have the Randolph Y chromosome,
and any direct male descendant would have that same Randolph Y chromosome.
Therefore it is impossible that any descendant of Thomas Jefferson's daughters
would have the Jefferson Y chromosome (unless some descendant along the line
later married a male line descendant of Field Jefferson). Since all of the
descendants of Thomas Jefferson's daughters had Y chromosomes from male lines
other than the Jeffersons, nothing could be more futile than to test the
acknowledged descendants of Thomas Jefferson.
In the absence of the father acknowledging paternity the law has determined that the most reliable way of determining paternity is blood and DNA testing, and there are clear rules one must follow to establish paternity. The responsibility for obtaining these rights and providing appropriate legal evidence belongs solely to the Hemings descendants and the burden of proof lies with them, not us. Since the law recognizes blood or DNA tests as the most reliable method in order to determine paternity in case of disputes, oral history plays no part and most other information is irrelevant as to whether someone is a lineal descendant for purposes of the right of burial in our graveyard. While interesting, the oral history promoted by the Hemings' plays absolutely no part when it comes to determining their rights as heirs of Thomas Jefferson. Family oral history may be useful in a scientific investigation as a pointer to suggest lines of inquiry, or to support other, more substantial evidence.
From a legal standpoint admissibility is the test which determines whether the
evidence may be considered, e.g. it is information from a source which the law
permits in a legal proceeding and is material and relevant to the issues
presented, and because of the nature of the evidence, whether greater or lesser
weight should be accorded to it. Hearsay is testimony offered by someone who
does not have personal knowledge that the testimony is true. A witness cannot
be cross-examined on hearsay because the witness only knows what he has been
told. For that reason, hearsay is inadmissible unless it falls within certain
limited exceptions. Oral history is inherently hearsay and therefore
inadmissible.
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