He is married to Cornelia de Lange.
They got married on May 8, 1912 at Wissenkerke, Zeeland, Nederland, he was 24 years old.Source 1
Child(ren):
grandparents
parents
brothers/sisters
children
Jan Koster | ||||||||||||||||||||||||||||||||||
1912 | ||||||||||||||||||||||||||||||||||
Cornelia de Lange | ||||||||||||||||||||||||||||||||||
Record for Cornelia de Lange/ Ancestry.com
Record for Jan Koster/ Ancestry.com
Record for Jan Koster/ Ancestry.com