↑ ["United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDQT-X6Q : 14 July 2016), William Barnes, Upper Cosby, Cocke, Tennessee, United States; citing enumeration district ED 67, sheet 447C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1248; FHL microfilm 1,255,248.]
It may be possible to confirm family relationships with William by comparing test results with other
carriers of his Y-chromosome or his mother's 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 DNA with William: