He is married to Maria Christina - Christiane Maria - Maria - Marieke Vaalmann.
They got married on February 7, 1795 at Wildervank, Gemeente Veendam, Groningen, Nederland, he was 35 years old.Source 2
Child(ren):
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I40412.php
53 in 1813
Backer Hermanus Geerts van Kerkhesep, Christiaans Maria