(1) He is married to Jaaptje van Slochteren.
They got married on March 10, 1910 at Haren, Groningen, Nederland, he was 25 years old.Source 1
(2) He is married to Gezina Postma.
They got married on April 2, 1914 at Groningen, Groningen, Nederland, he was 29 years old.Source 1
The couple were divorced from February 2, 1917 at Groningen, Groningen, Nederland.Source 1
(3) He is married to Martha Ebeldina Margaretha Stegeman.
They got married on February 27, 1918 at Amsterdam, Noord-Holland, Nederland, he was 32 years old.Source 2