He is married to Anna Gezina Maria Kosse.
They got married on January 21, 1898 at Hardenberg, Overijssel, Nederland , he was 33 years old.Source 3
Hermannus Gerhardus - Hermannes Gerhardus Henderikus Mars | ||||||||||||||||||
1898 | ||||||||||||||||||
Anna Gezina Maria Kosse |
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I42379.php