Simon Wognum, 27Johanna Elisabeth Kuijper, 27
S. Wahnum, 42J. E. Wahnum, 43"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MXJW-3B9 : accessed 28 Oct 2013), S. Wahnum, Calumet, Cook, Illinois, United States; citing sheet 378A, family 0, NARA microfilm publication T9-0200