Karl married Wilhelmina Hartmann on 10 Dec 1941 in Visselhövede, Landkreis Rotenburg, Niedersachsen. Wilhelmina (daughter of August Hartmann and Luise Löwenberg) was born on 13 Sep 1921 in Spirkelbach, Pfalz, Bayern; died on 15 Apr 1974 in Annweiler am Trifels, Landkreis Südliche Weinstraße, Rheinland-Pfalz. [Group Sheet] [Family Chart]

1. Heide Marie Dettmar was born on 30 Apr 1955 in Spirkelbach, Landkreis Südwestpfalz, Rheinland-Pfalz; died on 4 May 2023 in Pirmasens, Stadtkreis Pirmasens, Rheinland-Pfalz.