(1) He is married to Catharina Magdalena Hanrath.
Their notice of marriage was on August 27, 1912 in Amsterdam.Source 4
They got married on September 12, 1912 at Amsterdam, he was 27 years old.Source 5Child(ren):
(2) He is married to Sara Jacomina van der Hage.
They got married before 1927.
grandparents
parents
brothers/sisters
children
Ulco Proost | ||||||||||||||||||||||||||||||||||||
(1) 1912 | ||||||||||||||||||||||||||||||||||||
Catharina Magdalena Hanrath | ||||||||||||||||||||||||||||||||||||
(2) < 1927 | ||||||||||||||||||||||||||||||||||||
Sara Jacomina van der Hage | ||||||||||||||||||||||||||||||||||||