(1) He is married to Jannetje van Aalst.
They were married in church on December 11, 1857 at Benthuizen (ZH) , he was 26 years old.Source 1
Child(ren):
(2) He is married to Gerritje Voortman.
They were married in church on January 20, 1887 at Benthuizen (ZH) , he was 55 years old.Source 2
Isaak van der Knijff | |||||||||||||||||||||||||||||||||||
(1) 1857 | |||||||||||||||||||||||||||||||||||
Jannetje van Aalst | |||||||||||||||||||||||||||||||||||
(2) 1887 | |||||||||||||||||||||||||||||||||||
Gerritje Voortman |