↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X79L-X4S : accessed 25 March 2017), Ella M Van Demark in household of Walter S Van Demark, Detroit (Districts 0251-0500), Wayne, Michigan, United States; citing enumeration district (ED) ED 412, sheet 6A, line 22, family 74, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1048; FHL microfilm 2,340,783.
↑ "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K3T5-LTC : accessed 25 March 2017), Walter S Vandemark, Union Town, Broome, New York, United States; citing enumeration district (ED) 4-141, sheet 3A, line 26, family 48, 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 2504.
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