(1) He is married to Helena Sophia Kok.
They got married on March 9, 1898 at Amsterdam, he was 21 years old.Source 2
(2) He is married to Aagtje Klok.
They got married on March 23, 1899 at Oostzaan, he was 22 years old.Source 3
grandparents
parents
brothers/sisters
children
Willem Oostwal | ||||||||||||||||||
(1) 1898 | ||||||||||||||||||
Helena Sophia Kok | ||||||||||||||||||
(2) 1899 | ||||||||||||||||||
Aagtje Klok | ||||||||||||||||||