He is married to Trijntje Marijke Bosma.
They got married on May 19, 1923 at Kollumerland c.a., Friesland, Nederland, he was 22 years old.Source 3
grandparents
parents
brothers/sisters
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Sjoerd van der Zwaag | ||||||||||||||||||
1923 | ||||||||||||||||||
Trijntje Marijke Bosma | ||||||||||||||||||
Geboorteregister 1900, Kollumerland c.a.
https://www.graftombe.nl/names/info/180314/zwaag
Huwelijksregister 1923, Kollumerland c.a.