He is married to Margaretha Müller.
They got married on August 12, 1861 at Haren (Ems), Landkreis Emsland, Lower Saxony, Germany, he was 32 years old.Source 2
Child(ren):
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I32870.php
NR NAME voornaam GEBDAT TAUFDAT GEBORT Vater-Name Vater-Vorname Mutter-Name Mutter-Vorname JAAR
Otten oder Kop / unehelich Lambert 18290526 18290528 Altenberg Kop / Ackersmann Rudolf Otten Helena
Koop Witwer zu Haaren Lambert, Müller zu Altharen Margaretha