"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X9QR-33F : accessed 15 February 2015), Fred Van Sytzama in household of Edwin H Kollman, Kenosha, Kenosha, Wisconsin, United States; citing enumeration district (ED) 0008, sheet 16A, family 367, line 7, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2578; FHL microfilm 2,342,312.