He is married to Aaltje Poort.
They got married on May 17, 1939 at Barradeel, Friesland, Nederland, he was 32 years old.Source 3
grandparents
parents
brothers/sisters
children
Jacob de Boer | ||||||||||||||||||
1939 | ||||||||||||||||||
Aaltje Poort | ||||||||||||||||||
Geboorteregister 1907, Barradeel
https://www.graftombe.nl/names/info/154638/boer_de
Huwelijksregister 1939, Barradeel