(1) He is married to Cornelia Maria Dam.
They got married on August 18, 1904 at Amsterdam, he was 26 years old.Source 2
Child(ren):
(2) He is married to Gerritje Dam.
They got married on July 4, 1917 at 's Gravenhage, he was 39 years old.Source 3
(3) He is married to Wilhelmina Johanna Reijers.
They got married on October 27, 1920 at 's Gravenhage, he was 42 years old.Source 4
grandparents
parents
brothers/sisters
children
Gerrit Johannes van der Knoop | ||||||||||||||||||||||||||||||||||
(1) 1904 | ||||||||||||||||||||||||||||||||||
Cornelia Maria Dam | ||||||||||||||||||||||||||||||||||
(2) 1917 | ||||||||||||||||||||||||||||||||||
Gerritje Dam | ||||||||||||||||||||||||||||||||||
(3) 1920 | ||||||||||||||||||||||||||||||||||