"Ohio Marriages, 1800-1958," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XDFJ-L4M : 8 December 2014), Davidson Mattox and Eliza Cleland, 24 Feb 1870; citing Crawford,Ohio, reference ; FHL microfilm 0388679 V. 7.
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6KV-5SK : 17 October 2014), Davidson Mattax in household of William Cleland, Ohio, United States; citing p. 1, family 1, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,685.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6N6-RCS : 24 December 2015), Davidson Mattox, Richland, Stoddard, Missouri, United States; citing enumeration district ED 162, sheet 615B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0737; FHL microfilm 1,254,737.
"Indiana Marriages, 1811-2007," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XXJH-23D : 21 January 2016), Davidson Mattox and Malinda Wolf, 01 Oct 1885; citing Adams, Indiana, United States, various county clerk offices, Indiana; FHL microfilm 2,321,466.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMB7-FYP : 20 January 2015), Davadson Mattox, Blue Creek Township, Adams, Indiana, United States; citing sheet 7B, family 153, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,357.