He is married to Japke Mulder.
They got married on May 21, 1904 at Kollumerland c.a., Friesland, Nederland, he was 27 years old.Source 4
Child(ren):
grandparents
parents
brothers/sisters
children
Sjoerd Douma | ||||||||||||||||||||||||||||||||||
1904 | ||||||||||||||||||||||||||||||||||
Japke Mulder | ||||||||||||||||||||||||||||||||||
Geboorteregister 1876, Achtkarspelen
Overlijdensregister 1960, Kollumerland c.a.
https://www.graftombe.nl/names/info/178983/douma
Huwelijksregister 1904, Kollumerland c.a.