(1) He is married to Joanna Elisabeth Bikkers.
They got married on April 15, 1914 at Rotterdam , he was 30 years old.Source 1
Neef en nicht
Child(ren):
(2) He is married to Helena Johanna Kruijt.
They got married on January 26, 1927 at Rotterdam , he was 43 years old.Source 1
Berend Jan Christiaan Roukes | ||||||||||||||||||||||||||||||||||
(1) 1914 | ||||||||||||||||||||||||||||||||||
Joanna Elisabeth Bikkers | ||||||||||||||||||||||||||||||||||
(2) 1927 | ||||||||||||||||||||||||||||||||||
Helena Johanna Kruijt |