FamilySearch (https://familysearch.org/pal:/MM9.3.1/TH-1961-41558-53-94?cc=2215693 : accessed 6 November 2015), Herrick Public Library > Haverdink, Ralph - Heemstra, Dorothy >; image 68 of 1690; various offices and archives, Michigan. » Bronnen » Stamboom Swijgman en Feiken(s) » Genealogie Online"> FamilySearch (https://familysearch.org/pal:/MM9.3.1/TH-1961-41558-53-94?cc=2215693 : accessed 6 November 2015), Herrick Public Library > Haverdink, Ralph - Heemstra, Dorothy >; image 68 of 1690; various offices and archives, Michigan. » Bronnen » Stamboom Swijgman en Feiken(s) » Genealogie Online">