(1) He is married to Christina van der Zwaag.
They got married on April 2, 1938 at Leeuwarden (Fr), he was 28 years old.Source 3
The couple were divorced from November 16, 1944 at Leeuwarden (Fr).
(2) He is married to Pietje Dijkstra.
They got married on October 4, 1945 at Kollumerland c.a., Friesland, Nederland, he was 36 years old.Source 4
Geboorteregister 1909, Leeuwarden
https://graftombe.nl/names/info/2335971/dijkstra