He is married to Jitske van der Werk.
They got married on May 19, 1927 at Ferwerderadeel, Friesland, Nederland, he was 27 years old.Source 3
grandparents
parents
brothers/sisters
children
Jan Nicolai | ||||||||||||||||||
1927 | ||||||||||||||||||
Jitske van der Werk | ||||||||||||||||||
Geboorteregister 1899, Ferwerderadeel
http://www.graftombe.nl/names/info/1466742/nicolaij
Huwelijksregister 1927, Ferwerderadeel