He is married to Grietje de Ham.
They got married on March 4, 1920 at Tietjerksteradeel, Friesland, Nederland, he was 22 years old.Source 3
grandparents
parents
brothers/sisters
children
Heerke van Os | ||||||||||||||||||
1920 | ||||||||||||||||||
Grietje de Ham | ||||||||||||||||||
Geboorteregister 1897, Tietjerksteradeel
https://www.graftombe.nl/names/info/124038/os_van
Huwelijksregister 1920, Tietjerksteradeel