"United States Census, 1850," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MF8L-5JX : accessed 24 March 2015), Jan R Fellinga, Holland, Ottawa, Michigan, United States; citing family 395, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).