"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:KSKW-BZG : 7 January 2021), Fred Scheel, Moorhead, Clay, Minnesota, United States; citing enumeration district (ED) 14-30, sheet 61A, line 28, family 94, 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 1914.
United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J579-PPV : 10 January 2021), Fred Scheel, Jun 1976; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).