"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2X2-GXW : accessed 10 May 2022), Beatrice I Hamilton in household of Louis E Hamilton, Election District 2, Baltimore, Maryland, United States; citing enumeration district (ED) ED 7, sheet 13B, family 276, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 551; FHL microfilm 1,374,564.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X3W3-W89 : accessed 10 May 2022), Beatrice I Young in household of Louis E Hamilton, Election District 02, Baltimore, Maryland, United States; citing enumeration district (ED) ED 17, sheet 13A, line 8, family 236, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 845; FHL microfilm 2,340,580.
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