Note: I had adopted this profile, as in one family tree she was married to the father of a direct ancestor of mine (Catherine Walton, m Nathan Harris in 1737 or 1741). George Walton was, as far as I can tell, Catherine's father. But many trees have the father (incorrectly) as the George Walton who signed the Declaration of Independence (at most, that George was her father's nephew, but I'm not sure about that either - the signer's guardian was his uncle of the same name, but whether that was the George Walton who was Catherine's father is the question). I think that this Martha is not in my tree, but I'm still trying to sort out what happened."
It may be possible to confirm family relationships with Martha by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Martha: