He is married to Anna Adelheid Wolfs.
They got married on October 31, 1936 at Emmen, Gemeente Emmen, Drenthe, Nederland , he was 25 years old.Source 2
Gerhardus Johannes Grummel | ||||||||||||||||||
1936 | ||||||||||||||||||
Anna Adelheid Wolfs |
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I42124.php