"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4JG-932 : accessed 4 May 2015), Susan A Thomas in household of James A Thomas, Township 15 Range 3 West, Jefferson, Alabama, United States; citing enumeration district 173, sheet 330D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0016; FHL microfilm 1,254,016.
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M98T-9TR : accessed 4 May 2015), Sousan Thomas in household of James A Thomas, Precinct 6, 23, Jefferson, Alabama, United States; citing sheet 9B, family 156, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,020.
"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKWD-7FV : accessed 4 May 2015), S A Thomas in household of J A Thomas, Precinct 13, Walker, Alabama, United States; citing enumeration district (ED) 183, sheet 7A, family 141, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,049.
"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXDT-HWS : accessed 4 May 2015), Susie A Thomas in household of James A Thomas, Dora, Walker, Alabama, United States; citing sheet 4B, family 88, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,044.