"New York State Census, 1875," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VNVJ-7BY : accessed 26 November 2015), John F Seaman, Hyde Park, Dutchess, New York, United States; citing p. 8, line 23, State Library, Albany; FHL microfilm 565,246.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZZL-D4W : accessed 26 November 2015), John F Seaman, Hyde Park, Dutchess, New York, United States; citing enumeration district 42, sheet 254A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0824; FHL microfilm 1,254,824.