"Wisconsin, Marriages, 1836-1930," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XRFK-M1B : accessed 20 February 2015), Dirk Fenkkink and Katrina Elizabeth Helders, 07 Mar 1893; citing reference p105 99; FHL microfilm 1,275,554.