"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZF1-XWN : accessed 23 January 2016), Ellen H Guildersleeve in household of James E Guildersleeve, Port Jefferson, Suffolk, New York, United States; citing enumeration district ED 313, sheet 77B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0934; FHL microfilm 1,254,934.
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