| Kilder |
- [S32] Avis, The Standard Union, Brooklyn, New York Friday, January 31, 1930 (Troverdighet: 3).
- [S468] Ancestry.com. U.S.Evangelical Lutheran Church in America Church Records, 1781-1969 [database on-line]. Lehi, Utah, USA: 2015, Evangelical Lutheran Church in America Archives; Elk Grove Village, Illinois; Congregational Records (Troverdighet: 3).
- [S238] Find a grave, (USA), Mmorial page for Irving Olsen (5 Aug 1922–2 Jan 1987), Find a Grave Memorial ID 2776145, citing Long Island National Cemetery, East Farmingdale, Suffolk County, New York, USA; Maintained by XCHIEF (contributor 47669333). (Troverdighet: 3).
https://www.findagrave.com/memorial/2776145/irving-olsen
- [S46] Ancestry.com, Original data: Social Security Applications and Claims, 1936-2007. (Troverdighet: 3).
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