He is married to Maria Adelheid Brand.
They got married on November 22, 1803 at Meppen, Landkreis Emsland, Lower Saxony, Germany, he was 29 years old.
Joannis Henricus Wilken | ||||||||||||||||||
1803 | ||||||||||||||||||
Maria Adelheid Brand |
Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I5978.php