1881 - 1952 (71 Jahre)
| Franziska Josephine Duelberg | |
| *: | 29 Jan 1912 |
| D-Bochum-Stiepel | |
|
| Wilhelmine Koch 1881-1952 |
| Wilhelmine Koch | |
| *: | 1 Mrz 1881 |
| D-Bochum-Stiepel | |
| +: | 9 Jun 1952 |
| D-Herne | |
Wilhelm Duelberg 1880-1946 |
| Wilhelm Duelberg | |
| *: | 7 Nov 1880 |
| D-Bochum-Weitmar | |
| oo: | 27 Sep 1909 |
| D-Bochum-Stiepel | |
| +: | 22 Mai 1946 |
| D-Bochum | |
