He is married to Antje Schipper.
They got married on June 8, 1918 at Eenrum (Gr), he was 19 years old.Source 3
grandparents
parents
brothers/sisters
children
Derk Zijlstra | ||||||||||||||||||
1918 | ||||||||||||||||||
Antje Schipper | ||||||||||||||||||
Geboorteregister Leens 1898
https://www.online-begraafplaatsen.nl/graf/526336/800483/Derk-Zijlstra-1898-1988
Huwelijksregister Eenrum 1918