↑ 1.01.1 "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J1TS-CZ5 : 10 January 2021), Clarence Hanson, Apr 1969; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
↑ "South Dakota State Census, 1945," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLB5-3DV : 23 February 2021), Clarence A Hanson, Warner, Brown, South Dakota; citing p. 164, State Historical Society, Pierre; FHL microfilm 2,371,255.