He is married to Anna Margaretha Fischer.
They got married on May 2, 1912 at Barmen, Wuppertal, Kreisfreie Stadt Wuppertal, Düsseldorf District, North Rhine-Westphalia, Germany, he was 32 years old.Source 2
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I9865.php