"United States Census, 1850," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MF8L-WXF : accessed 21 Jan 2014), Harm Oostland in household of Harm Anorie, Georgetown, Ottawa, Michigan, United States; citing dwelling 434, family 434, NARA microfilm publication M432, roll 361.