"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVLN-YX1 : accessed 27 January 2022), Ethel C Martinelli in household of Peter A Martinelli, Yount, Napa, California, United States; citing enumeration district (ED) ED 84, sheet 6A, family 70, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 90; FHL microfilm 1,374,103.
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