He is married to Gerkje Keizer.
They got married on May 12, 1917 at Grootegast (Gr), he was 32 years old.Source 3
Child(ren):
grandparents
parents
brothers/sisters
children
Kornelis Jansma | ||||||||||||||||||||||||||||||||||
1917 | ||||||||||||||||||||||||||||||||||
Gerkje Keizer | ||||||||||||||||||||||||||||||||||
Geboorteregister Grootegast 1884
https://www.graftombe.nl/names/info/2028962/jansma
Huwelijksregister Grootegast 1917