"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8D3-36H : 12 April 2016), Thomas Perkins, Greenbrier county, Greenbrier, Virginia, United States; citing family 702, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
West Virginia Marriages, 1780-1970, database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2ZF-C9KN : 28 November 2018), Thos Perkins and Polly Williams, 14 Oct 1806; citing Marriage, Greenbrier, West Virginia, United States, county clerks, West Virginia; FHL microfilm .
"West Virginia Marriages, 1854-1932," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XRCB-P3B : 10 February 2018), Thomas Ethey and Sally Parkens, 17 Jan 1797; citing , Greenbrier, West Virginia, reference 2:3S4F71C; FHL microfilm 595,040.
It may be possible to confirm family relationships with Thomas by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: