"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M46V-MJP : accessed 9 December 2015), Susan Litton in household of Thomas Litton, Missouri, United States; citing p. 15, family 110, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,288.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3C6-4KJ : accessed 9 December 2015), Susan M Litton in household of Alexander Litton, Jackson Township (south part), Daviess, Missouri, United States; citing sheet 8B, family 156, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,852.