↑ "New York State Census, 1925," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSSJ-2BQ : 8 November 2014), Harrison L Chamberlain, Brooklyn, A.D. 01, E.D. 32, Kings, New York, United States; records extracted by Ancestry and images digitized by FamilySearch; citing p. 23, line 30, New York State Archives, Albany. 1925 New York Bethel
↑ "Florida Death Index, 1877-1998," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VVWS-WVX : 25 December 2014), Harrison L Chamberlain, 27 Feb 1982; from "Florida Death Index, 1877-1998," index, Ancestry (www.ancestry.com : 2004); citing vol. , certificate number 16803, Florida Department of Health, Office of Vital Records, Jacksonville.
↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VSXR-FMD : 7 January 2021), Harrison Chamberlain, Feb 1982; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSP8-7XG : accessed 9 October 2021), Harrison L Chamberlain in household of Fred Chamberlain, Middleburg Township, Wyoming, New York, United States; citing enumeration district (ED) 127, sheet 5A, family 102, 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:MPB5-DHD : accessed 9 October 2021), Harrison Chamberlain in household of Frank J Saile, Batavia, Genesee, New York, United States; citing enumeration district (ED) ED 4, sheet 6B, family 92, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 951; FHL microfilm 1,374,964.
"United States World War I Draft Registration Cards, 1917-1918", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KXBH-3ZW : 23 February 2021), Harrison Chamberlain, 1917-1918.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KQ99-QGL : 27 July 2019), Harrison L Chamberlin, Stafford Town, Genesee, New York, United States; citing enumeration district (ED) 19-50, sheet 5A, line 26, family 104, 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 2539.