"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSGY-BTW : accessed 15 May 2018), Mary R Arnott in household of Francis S Arnott, Cambridge Township (east part) Cambridge village, Washington, New York, United States; citing enumeration district (ED) 115, sheet 6A, family 141, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,172.
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