"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MFZQ-3KT : 29 July 2017), John A Quinn in household of Thomas Quinn, Killingly, Windham, Connecticut, United States; citing enumeration district ED 128, sheet 380C, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,110.
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