(1) He is married to Bernardina van Gelder.
They got married on April 13, 1893 at Amersfoort (UT) , he was 24 years old.Source 3
(2) He is married to Willemina Catharina Stom.
They got married on June 18, 1903 at Amsterdam (NH) , he was 34 years old.Source 4
William Christiaan Dijkgraaf | ||||||||||
(1) 1893 | ||||||||||
Bernardina van Gelder | ||||||||||
(2) 1903 | ||||||||||
Willemina Catharina Stom |