Parents were Joseph Goldsmith and Jennie Sonnehill.
Sources
Marriage
"New York, New York City Marriage Records, 1829-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:249D-WF3 : 10 February 2018), Julius Oppenheim and Claire Goldsmith, 22 Nov 1906; citing Marriage, Manhattan, New York, New York, United States, New York City Municipal Archives, New York; FHL microfilm 1,558,677.
"New York Marriages, 1686-1980," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F632-FS9 : 10 February 2018), Julius Oppenheim and Claire Goldsmith, 22 Nov 1906; citing reference ; FHL microfilm 1,558,677.
Census
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MJYG-Y3L : accessed 17 February 2018), Claire G Oppenheim in household of Julius Oppenheim, Manhattan Assembly District 7, New York, New York, United States; citing ED 567, sheet 22B, line 78, family 505, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1198; FHL microfilm 1,821,198.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K3YJ-2HV : accessed 17 February 2018), Claire G Oppenheimer in household of Julius Oppenheimer, Assembly District 15, Manhattan, New York City, New York, New York, United States; citing enumeration district (ED) 31-1377, sheet 11A, line 34, family 432, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 2656.
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