| Sources |
- [S1790] Social Security Administration, Social Security Applications and Claims Index, 1936-2007, (Ancestry.com (http://www.ancestry.com : 2015)), entry for Theresa Frances Kascak [Theresa Frances Nelson], 1979, SS no. 535-30-7845, accessed 14 Jan 2025 (Reliability: 3).
- [S1946] Minnesota Department of Health, Minnesota, Death Index, 1908-2017, ((http://www.ancestry.com : 2001)), accessed 14 Jan 2025), Theresa Frances Nelson, 1979, Hennepin County; certificate no. 016325. (Reliability: 3).
- [S2309] Minnesota. Minneapolis., Minneapolis Tribune, "Obituaries and Funerals," 29 Jul 1979, p. 6B, col. 4; digital images, Newspapers.com (http://www.newspapers.com : accessed 14 Jan 2025). (Reliability: 3).
- [S1935] Washington State Archives, Ancestry.com Operations, Inc., Washington, Marriage Records, 1854-2013, (http://www.ancestry.com :2012.), marriage certificate 11294B (1953), Nelson-Kascak accessed 14 Jan 2025. (Reliability: 3).
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