He is married to Anna Helena Margaretha - Maria Helena - Helena Jansen.
They got married on November 17, 1840 at Wesuwe, Haren (Ems), Landkreis Emsland, Lower Saxony, Germany, he was 25 years old.Source 4
Witness: Joseph Ostermann Ackersmann zu Altenberg B.H.Bippen Küster zu Wesuwe
Child(ren):
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I14206.php
NR NAME voornaam GEBDAT TAUFDAT GEBORT Vater-Name Vater-Vorname Mutter-Name Mutter-Vorname JAAR
6921 Ostermann Gut Achter-Trinen Bernard Henrich 18150920 18150922 Altenberg Ostermann Gut Achter-Trinen Lucas / Ackersmann Wilmes Catharina Elisabeth
2650 24 Ostermann Bernard Heinrich Colonist Ehemann Altenberge 77 Ostermann Bernard Lucas Hartmann Elisabeth Colonist Altenberge 18900524 18900527 Jansen Anna Helena Altersschwäche
Ostermann zu Altenberg 25 J., Jansen zu Altenberg 21 Jahre
ouders bruidegom: Ostermann Lucas, Wilmes Catharina
ouders bruid: Jansen Herm, Lammers Maria Gesina