(1) He is married to Rosa de Wijze.
They got married on April 30, 1851 at Nijmegen, he was 32 years old.Source 1
Child(ren):
(2) He is married to Johanna van Oss.
They got married on June 7, 1864 at Vierlingsbeek, he was 45 years old.
12 kinderen:
http://shum.huji.ac.il/~dutchjew/genealog/blok_nijm/33.htm
grandparents
parents
brothers/sisters
children
Isaak David Blok | |||||||||||||||||||||||||||||||||||||
(1) 1851 | |||||||||||||||||||||||||||||||||||||
Rosa de Wijze | |||||||||||||||||||||||||||||||||||||
(2) 1864 | |||||||||||||||||||||||||||||||||||||
Johanna van Oss | |||||||||||||||||||||||||||||||||||||