He is married to Jacomina Zuur.
Permission for the marriage has been obtained in Eemsmond (Usquert) (Groningen) on March 21, 1903.Source 2
They got married on March 21, 1903 at Eemsmond (Usquert) (Groningen), he was 26 years old.Source 3Child(ren):
Thomas Kalfsbeek | |||||||||||||||||||||||||||||||||||
1903 | |||||||||||||||||||||||||||||||||||
Jacomina Zuur |
http://www.genealogieonline.nl/stamboom-van-der-laan-van-oterdum/I2879.php
Groninger Archieven
Huwelijksakte Aktenr. 2