I think the death date Ancestry.com Family Trees are using may not be the correct one, either that or the below reference is wrong. Requires more research.
Sources
17 Nov 1761 - Virginia, Land, Marriage, and Probate Records, 1639-1850[1]
This person was created through the import of Lynch-Tree.ged on 06 August 2010.
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DNA Connections
It may be possible to confirm family relationships with Gideon by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Gideon: