He is married to Gepke Postma.
They got married on May 15, 1915 at Dantumadeel, Friesland, Nederland, he was 31 years old.Source 3
grandparents
parents
brothers/sisters
children
Johannes de Roos | ||||||||||||||||||
1915 | ||||||||||||||||||
Gepke Postma | ||||||||||||||||||
Geboorteregister 1884, Kollumerland c.a.
https://www.graftombe.nl/names/info/195922/roos_de
Huwelijksregister 1915, Dantumadeel