He is married to Anna Adelheid - Anna Adelheid Agnes - Anna Agnes - Anna Adeline Wilken.
They got married on October 4, 1877 at Clinton, Illinois, United States, he was 37 years old.Source 4
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I2991.php