He is married to Euphemia Maria - Anna Maria - Maria Veenker.
They got married on April 22, 1828 at Wesuwe, Haren (Ems), Landkreis Emsland, Lower Saxony, Germany, he was 29 years old.Source 4
Witness: Hermann Feenker Ackersm.zu Helte KS Bokelo Joseph Bippen Küster z.Wesuwe
Child(ren):
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I14459.php
29 in 1828, NR NAME voornaam GEBDAT TAUFDAT GEBORT Vater Name Vater Vorname Mutter Name Mutter Vorname JAAR OPMERKINGEN
5778 Venker Johann Gerhardus 17990127 Dankern Venker Johann Bruns Adeleid
2046 34 Veenker Johann Gerhard Colonist Altenberge 73 Veenker Johann Bruns Maria Adelheid Colonist Altenberge 18741202 18741205 Veenker Anna Maria Schlagfluß
Veenker zu Altenberg 29 Jahre, Feenker zu Hälte KS Bokelo 29 Jahre