"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K4KR-QWS : accessed 11 December 2014), William Bruinsma in household of Ida Bruinsma, Ward 9, Worcester, Worcester City, Worcester, Massachusetts, United States; citing enumeration district (ED) 23-194C, sheet 7A, family 142, NARA digital publication of T627, roll 1719, NARA digital publication of T627, National Archives and Records Administration, Washington, D.C.