"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9D7-2TX : accessed 24 June 2018), Dona Kirklan in household of Riley R Kirklan, Precinct 1 Athens, Limestone, Alabama, United States; citing enumeration district (ED) 83, sheet 18B, family 269, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,026.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKQG-NGZ : accessed 24 June 2018), Dona Kirkling in household of Mattie Kirkling, Athens, Limestone, Alabama, United States; citing enumeration district (ED) ED 95, sheet 17B, family 258, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 15; FHL microfilm 1,374,028.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:3L29-7ZM : accessed 24 June 2018), William W Higdon, Sand Springs, Limestone, Alabama, United States; citing enumeration district (ED) ED 11, sheet 7B, line 90, family 140, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 35; FHL microfilm 2,339,770.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:V1PQ-H5S : accessed 24 June 2018), Gertrude Higdon in household of W W Higdon, Election Precinct 10, Limestone, Alabama, United States; citing enumeration district (ED) 42-25B, sheet 3A, line 36, family 40, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 53.