"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M63Y-HHY : accessed 4 October 2018), Tobias Dantzig, Baltimore Ward 9, Baltimore (Independent City), Maryland, United States; citing ED 134, sheet 6B, line 93, family 143, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 662; FHL microfilm 1,820,662.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XM23-625 : accessed 4 October 2018), Tobias C Dantzig, Washington, Washington, District of Columbia, United States; citing enumeration district (ED) ED 310, sheet 12B, line 53, family , NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 300; FHL microfilm 2,340,035.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K7FV-66F : 15 March 2018), Tobias Dantzig, Ward 2, Hyattsville, Election District 16, Prince George's, Maryland, United States; citing enumeration district (ED) 17-48, sheet 14B, line 77, family 293, 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 1557.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JRZ3-BTG : 20 May 2014), Anna Dantzig, May 1963; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
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