(1) He is married to Jacoba Kuiper.
Their notice of marriage was on between December 1, 1900 and December 7, 1900 in Texel.Source 1
They got married on January 18, 1901 at Texel, he was 22 years old.Source 2Huwelijksafkondiging Groningen 9 en 16 dec 1900
The couple were divorced from April 26, 1905 at Amsterdam .Source 3
Vonnis arrondissements rechtbank Alkmaar dd 9 feb 1905
(2) He is married to Kasperdina Kuiper.
They got married on July 2, 1905 at Groningen , he was 26 years old.Source 4
Ouders: Siete Neef en Trientje van der Kaap.
9 dec 1900
Akteplaats: Texel
Soort akte: Huwelijksakte
Aktenummer: 3
Registratiedatum: 18-01-1901
Akteplaats: Amsterdam
Soort akte: Scheidingsakte
Aktenummer: Reg.1 fol. 30v
Registratiedatum: 26-04-1905
Gemeente: Groningen
Soort akte: Huwelijksakte
Aktenummer: 301
Registratiedatum: 02-07-1905