"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSPZ-YGR : accessed 20 June 2017), Cora E Calkins in household of Clarance Calkins, Warsaw Township (excl. Warsaw vill.), Wyoming, New York, United States; citing enumeration district (ED) 134, sheet 8A, family 167, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,179.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MP1B-6Y6 : accessed 20 June 2017), Cora E Calkins in household of Clarence Calkins, Warsaw, Wyoming, New York, United States; citing enumeration district (ED) ED 194, sheet 4A, family 88, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1087; FHL microfilm 1,375,100.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MV33-N5X : accessed 20 June 2017), Cora Calkins in household of Clarence Calkins, Warsaw, Wyoming, New York, United States; citing ED 219, sheet 11B, line 54, family 1, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1274; FHL microfilm 1,821,274.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X4GR-D8N : accessed 20 June 2017), Cora E Calkins in household of Clarence E Calkins, Warsaw, Wyoming, New York, United States; citing enumeration district (ED) ED 29, sheet 15A, line 26, family 504, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1670; FHL microfilm 2,341,404.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K79G-7WY : accessed 20 June 2017), Cora Calkins in household of Clarence Calkins, Warsaw, Warsaw Town, Wyoming, New York, United States; citing enumeration district (ED) 61-36, sheet 8A, line 4, family 191, 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 2816.
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