He is married to Jitske Klaassen.
They got married on July 14, 1917 at Achtkarspelen (Fr), he was 20 years old.Source 3
grandparents
parents
brothers/sisters
children
Lammert Jeen Landman | ||||||||||||||||||
1917 | ||||||||||||||||||
Jitske Klaassen | ||||||||||||||||||
Geboorteregister 1896, Achtkarspelen
https://www.graftombe.nl/names/info/132739/landman
Huwelijksregister 1917, Achtkarspelen