"United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MHCD-L86 : accessed 24 Nov 2014), Herman Beukema, Michigan, United States; citing p. 36, family 288, NARA microfilm publication M593, National Archives and Records Administration, Washington D.C.; FHL microfilm 000552196.