"Michigan, Marriages, 1868-1925," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/N3B5-LHH : accessed 14 March 2015), Peter Bytwerk and Idah Musch, 04 Aug 1920; citing Muskegon, Muskegon, Michigan, v 6 p 39 rn 13471, Department of Vital Records, Lansing; FHL microfilm 2,342,739.