He is married to Maria Aleida Hartmann.
They got married on November 10, 1928 at Emmen, Gemeente Emmen, Drenthe, Nederland , he was 27 years old.Source 4
Child(ren):
Rudolf - Roelf Feringa | |||||||||||||||||||||||||||||||||||||
1928 | |||||||||||||||||||||||||||||||||||||
Maria Aleida Hartmann |
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I1774.php
naturalisatie 1950
https://repository.overheid.nl/frbr/sgd/19491950/0000085893/1/pdf/SGD_19491950_0002070.pdf