"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSLZ-FDR : accessed 5 January 2016), George M Eitel, Rockwood Township, Wadena, Minnesota, United States; citing enumeration district (ED) 80-13, sheet 2A, family 26, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 1966.
"United States World War II Draft Registration Cards, 1942," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKCC-MJV7 : accessed 5 January 2016), George Martin Eitel, 27 Apr 1942; citing NARA microfilm publication M1936, M1937, M1939, M1951, M1962, M1964, M1986, M2090, and M2097 (Washington D.C.: National Archives and Records Administration, n.d.).
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J1GK-Y6N : accessed 5 January 2016), George Eitel, Oct 1985; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).