1 Eilke WIERENGA =Pieter KNOOPS Marriage: 26 May 1904, Winsum 2 Gerrit Jan KNOOPS =Antje KARLIEN Marriage: 25 Apr 1933, Uithuizen 2 Bene KNOOPS =Berendje KERSAAN Marriage: 7 May 1931, Winsum 2 Jan KNOOPS =Jeltje HOFMAN 3 N.N. KNOOPS 2 Bouktje KNOOPS =Koert KUIPER 2 Klaas KNOOPS