1857-1941
| Wilhelmina Knapp | |
| *: | 11 Jun 1857 |
| D-Bochum-Stiepel | |
| +: | 10 Nov 1941 |
| D-Bochum-Laer | |
1847-
| Franz Heinrich Bomholt | |
| *: | 11 Mai 1847 |
| D-Datteln | |
| oo: | 8 Nov 1878 |
| D-Bochum-Stiepel | |
1875-
| Mathilde Knapp | |
| *: | 14 Mai 1875 |
| D-Bochum-Stiepel | |
1878-1887
| Heinrich Eduard Knapp | |
| *: | 5 Mai 1878 |
| D-Bochum-Stiepel | |
| +: | 7 Apr 1887 |
| D-Bochum | |