"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X7MW-CSD : accessed 27 April 2015), Marie Raak in household of William Raak, Holland, Ottawa, Michigan, United States; citing enumeration district (ED) 0019, sheet 23A, family 574, line 42, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1024; FHL microfilm 2,340,759.