"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MZZR-CG4 : accessed 27 December 2014), Gerret Banker, Lancaster, Erie, New York, United States, 98; citing sheet 25D, film number 0827, NARA microfilm publication T9, National Archives and Records Administration, Washington D.C.; FHL microfilm 1,254,827.