"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSK5-1HG : accessed 5 February 2016), Pauline Berg in household of Arthur Berg, Borough of Manhattan, Election District 15 New York City Ward 31, New York County, New York, United States; citing sheet 15B, family 342, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,119.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MJ79-VXD : accessed 5 February 2016), Pauline Berg in household of Joseph Bower, Chicago Ward 25, Cook (Chicago), Illinois, United States; citing sheet 6B, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,342.
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