"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KH34-4Y2 : accessed 7 July 2015), Nicholas Jelles, Ward 3, Grand Rapids, Grand Rapids City, Kent, Michigan, United States; citing enumeration district (ED) 86-150, sheet 18A, family 341, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 1901.