↑ "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSXS-FR2 : 6 March 2015), Florence L Van De Mark in household of Charles J Van De Mark, Poughkeepsie Township, Dutchess, New York, United States; citing sheet 21A, family 484, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,023.
↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M57Y-4YH : 29 October 2015), Florence Vandemark in household of Charles Vandemark, Poughkeepsie Ward 6, Dutchess, New York, United States; citing enumeration district (ED) ED 72, sheet 11A, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,374,949.
↑ "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MV91-2SF : 14 December 2015), Florence L Corie in household of Harry T Bernhardt, Clarkstown, Rockland, New York, United States; citing sheet 3A, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,821,259.
↑ "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KQGP-TJ2 : accessed 30 September 2016), Florence L Young in household of Jacob Raymond Young, Ward 2, Middletown, Middletown City, Orange, New York, United States; citing enumeration district (ED) 36-40, sheet 15B, family 384, 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 2709.