"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M34P-NNS : accessed 11 July 2021), Mary F Gee in household of Mary F Gee, Monongahela city Ward 1, Washington, Pennsylvania, United States; citing enumeration district (ED) 155, sheet 2A, family 14, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,494.
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