He is married to Klaaske Faber.
They got married on May 19, 1931 at Oostdongeradeel, Friesland, Nederland, he was 33 years old.Source 3
grandparents
parents
brothers/sisters
children
Klaas de Jong | ||||||||||||||||||
1931 | ||||||||||||||||||
Klaaske Faber | ||||||||||||||||||
Geboorteregister 1897, Ferwerderadeel
https://www.graftombe.nl/names/info/253976/jong_de
Huwelijksregister 1931, Oostdongeradeel