"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K4PD-VCS : accessed 19 Aug 2014), Nick Deboer, Holland Township, Ottawa, Michigan, United States; citing enumeration district (ED) 70-28, sheet 19A, family 345, NARA digital publication of T627, roll 1809.