"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MW3H-34M : accessed 15 Nov 2014), Martin Japenga, Holland, Ottawa, Michigan, United States; citing sheet 514A, NARA microfilm publication T9, NARA microfilm publication T9, National Archives and Records Administration, Washington D.C.; FHL microfilm 1254601.