"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K9D5-MZD : accessed 29 Oct 2013), Maynard Wiersma, Santa Maria, Judicial Township 7, Santa Barbara, California, United States; citing enumeration district (ED) 42-59, sheet 4A, family 95, NARA digital publication of T627, roll 334.