| Kilder |
- [S277] Nordisk Tidende, New York, USA, (New York, USA.), 09.04.1931 (Troverdighet: 3).
- [S46] Ancestry.com, New York, New York, U.S., Birth Index, 1910-1965 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2017. (Troverdighet: 3).
- [S46] Ancestry.com, USA, uppgifter om avlidna, 1935-2014 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2014. (Troverdighet: 3).
- [S238] Find a grave, (USA), Memorial page for Rosa F Tellefsen (18 Sep 1928–27 Jun 2008), Find a Grave Memorial ID 72373022, citing Calverton National Cemetery, Calverton, Suffolk County, New York, USA; Maintained by J. Edward Ross (contributor 47159122) (Troverdighet: 3).
https://www.findagrave.com/memorial/72373022/rosa-f-tellefsen
- [S32] Avis, The Brooklyn Daily Eagle Brooklyn, New York · Sunday, June 19, 1949 (Troverdighet: 3).
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