(1) He is married to Johanna Maria Vontsteen.
They got married on May 17, 1888 at Rotterdam , he was 19 years old.Source 2
Child(ren):
The couple were divorced from June 30, 1913 at Rotterdam .Source 3
(2) He is married to Johanna Berendina Janssen.
They got married on December 3, 1913 at Arnhem , he was 44 years old.Source 4
Child(ren):
Hendrik Willem Pannekoek | |||||||||||||||||||||||||||||||||||
(1) 1888 | |||||||||||||||||||||||||||||||||||
Johanna Maria Vontsteen | |||||||||||||||||||||||||||||||||||
(2) 1913 | |||||||||||||||||||||||||||||||||||
Johanna Berendina Janssen |