↑ "Michigan Births, 1867-1902," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQX2-N5H : 30 April 2019), Floyd L. Spring, 05 Jun 1898; citing item 2 rn 32, Gilmore, Isabella, Michigan, Department of Vital Records, Lansing; FHL microfilm 2,322,864.
↑ 2.02.1 "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSMK-H4P : accessed 16 June 2019), Floyd L Spring in household of Bradford Spring, Gilmore township, Isabella, Michigan, United States; citing enumeration district (ED) 70, sheet 3A, family 63, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,718.
↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:ML5N-8TZ : accessed 16 June 2019), Floyd L Springs in household of Bradford Springs, Gilmore, Isabella, Michigan, United States; citing enumeration district (ED) ED 91, sheet 9B, family 121, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 652; FHL microfilm 1,374,665.
↑ "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZ3Z-GWF : accessed 16 June 2019), Floyd L Spring in household of Bradford Spring, Mount Pleasant Ward 1, Isabella, Michigan, United States; citing ED 207, sheet 6A, line 36, family 144, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 770; FHL microfilm 1,820,770.
↑ "United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K6XD-43T : 13 March 2018), Floyd Leo Spring, 1917-1918; citing Isabella County, Michigan, United States, NARA microfilm publication M1509 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,675,759.