He is married to Trijntje van de Witte.
They got married on May 25, 1907 at Kollumerland c.a., Friesland, Nederland, he was 24 years old.Source 4
Child(ren):
grandparents
parents
brothers/sisters
children
Folkert Koopmans | ||||||||||||||||||||||||||||||||||||||
1907 | ||||||||||||||||||||||||||||||||||||||
Trijntje van de Witte | ||||||||||||||||||||||||||||||||||||||
Geboorteregister 1882, Kollumerland c.a.
Overlijdensregister 1934, Kollumerland c.a.
https://www.graftombe.nl/names/info/15242/koopmans
Huwelijksregister 1907, Kollumerland c.a.