1"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MZFQ-V68), Levi Townsend, Putnam Valley, Putnam, New York, United States; citing enumeration district 81, sheet 113A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0917; FHL microfilm 1,254,917.