"West Virginia Marriages, 1780-1970," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FRYW-ZPX : 4 December 2014), Presley Martin and Susan S Pearce, 1838; citing Marshall, West Virginia, United States, , county clerks, West Virginia; FHL microfilm 853,805.
"Iowa, County Marriages, 1838-1934," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XJ4R-565 : 4 November 2017), Presly Or Presley Martin and Mary S. Or Mary Ann Peirce Or Pierce, 12 Jun 1854, Van Buren, Iowa, United States; citing reference , county courthouses, Iowa; FHL microfilm 967,640.
Find A Grave, database and images (https://www.findagrave.com : accessed 11 November 2017), memorial page for Presley S. Martin (14 Nov 1817–12 Jul 1878), Find A Grave Memorial no. 22976793, citing Spickelmeyer Cemetery, Sherwin, Cherokee County, Kansas, USA ; Maintained by JFI (contributor 47211966) . Find A Grave: Memorial #22976793
It may be possible to confirm family relationships with Presley 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: