She is married to Johannes Postma.
They got married on September 2, 1905 at Dantumadeel, Friesland, Nederland, she was 20 years old.Source 3
Child(ren):
grandparents
parents
brothers/sisters
children
Grietje Koster | |||||||||||||||||||||||||||||||||||||
1905 | |||||||||||||||||||||||||||||||||||||
Johannes Postma | |||||||||||||||||||||||||||||||||||||
Geboorteregister 1885, Achtkarspelen
https://www.graftombe.nl/names/info/195540/koster
Huwelijksregister 1905, Dantumadeel