(1) He is married to Elisabeth Vavier.
They got married on November 7, 1877 at Leiden, he was 25 years old.Source 1
Child(ren):
(2) He is married to Maaike Nauta.
They got married on July 13, 1881 at Leiden, he was 29 years old.
Child(ren):
grandparents
parents
brothers/sisters
children
Pieter de Graaf | ||||||||||||||||||||||||||||||||||||
(1) 1877 | ||||||||||||||||||||||||||||||||||||
Elisabeth Vavier | ||||||||||||||||||||||||||||||||||||
(2) 1881 | ||||||||||||||||||||||||||||||||||||
Maaike Nauta | ||||||||||||||||||||||||||||||||||||