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- [S241] Folketelling USA 01.04.1940, Census Place: New York, Richmond, New York; Roll: m-t0627-02763; Page: 5B; Enumeration District: 43-219 (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, New Jersey State Archives; Trenton, New Jersey; New Jersey, Death Indexes, 1904-2000 (Troverdighet: 3).
- [S46] Ancestry.com, New York City Municipal Archives; New York, New York; Borough: Staten Island; Volume Number: 1; Page Number: 118 (Troverdighet: 3).
- [S84] Family Search, (USA), New York, New York City Marriage Records, 1829-1938, database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:Q2C6-J2WG : 17 August 2022), Howard Clark Burroughs and Elizabeth Margaret Thompsen, 1927. (Troverdighet: 3).
- [S46] Ancestry.com, New York, New York, U.S., Marriage License Indexes, 1907-2018 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2017. (Troverdighet: 3).
New York City Municipal Archives; New York, New York; Borough: Staten Island
- [S46] Ancestry.com, New York City Municipal Archives; New York, New York; Borough: Staten Island; Volume Number: 1 (Troverdighet: 3).
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