He is married to Trientje Frankes.
They got married on June 1, 1918 at Grootegast (Gr), he was 33 years old.Source 4
grandparents
parents
brothers/sisters
children
Jan de Vries | ||||||||||||||||||
1918 | ||||||||||||||||||
Trientje Frankes | ||||||||||||||||||
Geboorteregister Grootegast 1884
Overlijdensregister Groningen 1962
https://www.graftombe.nl/names/info/2028572/vries_de
Huwelijksregister Grootegast 1918