"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MNQ1-NC5 : 8 September 2017), Wm K Horney, Trappe, Talbot, Maryland, United States; citing enumeration district ED 80, sheet 511B, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,516.
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