↑ "Wisconsin Birth Index, 1820-1907," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VHHF-LBT : 4 December 2014), Eldon C Bergsbaken, 24 Mar 1900; from "Wisconsin Births, 1820-1907," database, Ancestry (http://www.ancestry.com : 2000); citing Shawano, Wisconsin, reel 0268, Wisconsin Department of Health and Family Services, Vital Records Division, Madison.
↑ "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM2D-V5P : accessed 27 September 2021), Eldor C Bergsoan in household of Erick Helgeson, Navarino & Lessor towns, Shawano, Wisconsin, United States; citing enumeration district (ED) 167, sheet 16A, family 258, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,817.
↑ "Wisconsin State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM7H-37K : 8 March 2021), Elder Bersbocken in household of Kanute O Bersbocken, Lessor, Shawano, Wisconsin; citing p. 299, line 41, State Historical Society, Madison; FHL microfilm 1,020,985.
↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MP2W-8RG : accessed 27 September 2021), Elder C Bersbaken in household of Knut Bersbaken, Lessor, Shawano, Wisconsin, United States; citing enumeration district (ED) ED 151, sheet 1B, family 15, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1737; FHL microfilm 1,375,750.
↑ "United States World War I Draft Registration Cards, 1917-1918", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K87C-DKG : 23 February 2021), Eldore Clarence Bergsbaken, 1917-1918.
↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X9SC-BNS : accessed 27 September 2021), Eldore Bergsbaken in household of Knut Bergsbaken, Grand Chute, Outagamie, Wisconsin, United States; citing enumeration district (ED) ED 28, sheet 3B, line 51, family 55, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2603; FHL microfilm 2,342,337.
↑ "New York State Census, 1925," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSSJ-2YV : 8 November 2014), Eldore C Bergsbaken, 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 14, New York State Archives, Albany.
1925 New York Bethel
↑ 12.012.112.2 "United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K7JH-K4F : 10 January 2021), Eldore Bergseaken, Wausau, Marathon, Wisconsin, United States; citing enumeration district (ED) 37-69, sheet 5A, line 40, family 90, 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 4497.
↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V9Z3-2Z2 : 9 January 2021), Eldore C Bergsbaken, 17 Aug 1996; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).