He is married to Stoffertje Elizabeth Birza.
They got married on February 12, 1934 at Groningen (Gr), he was 22 years old.Source 3
grandparents
parents
brothers/sisters
children
Jan Hendrik Copinga | ||||||||||||||||||
1934 | ||||||||||||||||||
Stoffertje Elizabeth Birza | ||||||||||||||||||
Geboorteregister Leek 1911
https://nl.findagrave.com/memorial/135927528/jan-hendrik-copinga
Huwelijksregister Groningen 1934