He is married to Ymkje Martens Veenstra.
They got married on December 28, 1935 at Achtkarspelen, Friesland, Nederland , he was 21 years old.Source 3
Klaas Klazes Kloosterman | ||||||||||||||||||
1935 | ||||||||||||||||||
Ymkje Martens Veenstra |
T-diel, 1900-1914, letters K - L
https://www.graftombe.nl/names/info/536995/kloosterman
Huwelijksregister 1935, Achtkarspelen, aktenummer 120