He is married to Maria Carolina Kolker.
They got married on May 31, 1879 at Emmen, Gemeente Emmen, Drenthe, Nederland, he was 27 years old.Source 3
grandparents
parents
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Harm Hendrik Veltrop | ||||||||||||||||||
1879 | ||||||||||||||||||
Maria Carolina Kolker | ||||||||||||||||||
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I9131.php