(1) He is married to Anje de Groot.
They got married on June 5, 1924 at Aduard (Gr), he was 25 years old.Source 3
(2) He is married to Grietje van der Veen.
They got married on May 19, 1979, he was 80 years old.
grandparents
parents
brothers/sisters
children
Pieter Boonstra | ||||||||||||||||||
(1) 1924 | ||||||||||||||||||
Anje de Groot | ||||||||||||||||||
(2) 1979 | ||||||||||||||||||
Grietje van der Veen | ||||||||||||||||||
Geboorteregister Aduard 1899
https://www.graftombe.nl/names/info/13036/boonstra
Huwelijksregister Aduard 1924