Kilder |
- [S74] Lamm, Jan-Peder Erik - i Geni, (https://www.geni.com/people/Jan-Peder-Lamm/6000000002479619124), 12 maj 2018, https://www.geni.com/people/Sonja/6000000035505190843.
- [S870] Dansk Jødisk Museum & Dansk Institut for Internationale Studier, Safe Haven, (https://safe-haven.dk/), 11 apr. 2020, https://safe-haven.dk/fileadmin/user_upload/Uppgift_Sichel__Elly.pdf.
- [S191] KB Rigshospitalet, København, (www.sa.dk), 1928-1929.f. Ops. 392 (S. 399).
- [S2225] KB Solbjerg, Holbæk, (www.sa.dk), 1914-1950, Ops. 92 (S. 116).
- [S262] Sichel, Sonja, WW2 People's War- an archive of World War 2 memories, (http://www.bbc.co.uk/history/ww2peopleswar/stories/69/a4364769.shtml), A4364769.
- [S463] The Church of Jesus Christ of Latter-day Saints, FamilySearch, (https://www.familysearch.org), 1 apr. 2020, https://www.familysearch.org/ark:/61903/1:1:CG1F-VGZM.
Bognor Regis, West Sussex ifl. "England Death Record,1998-2015", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:CG1F-VGZM : 6 April 2020), Ms Sonja Sichel, 2010.
- [S2227] Chichester Observer, 2020, https://announcements.johnstonpress.co.uk/obituaries/chichester-uk/obituary.aspx?n=sonja-sichel&pid=184868933.
Link set 2020. Dødt link Dec 2021.
- [S463] The Church of Jesus Christ of Latter-day Saints, FamilySearch, (https://www.familysearch.org), 14 dec. 2021, https://www.familysearch.org/ark:/61903/1:1:Q2G5-HLD9.
"Denmark, Copenhagen City, Civil Marriages, 1739-1964, Index 1877-1964," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2G5-HLD9 : 25 June 2021), Ernest Nathan Sichel and Elly Seligmann, 29 Jul 1928; citing København, København, Danmark, certificate number 3035, p. , Københavns Stadsarkiv (City Archives), Copenhagen; FHL microfilm .
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