1880 - 1953 (73 Jahre)
| Wilhelm Bierwirth 1903- |
| Wilhelm Bierwirth | |
| *: | 21 Apr 1903 |
| D-Bochum-Stiepel | |
|
| Carl Wilhelm Bierwirth 1880-1953 |
| Carl Wilhelm Bierwirth | |
| *: | 15 Jan 1880 |
| D-Bochum-Stiepel | |
| +: | 21 Okt 1953 |
| D-Bochum-Stiepel | |
Hedwig Hagemann 1883-1974 |
| Hedwig Hagemann | |
| *: | 30 Mrz 1883 |
| D-Bochum-Stiepel | |
| oo: | 9 Aug 1902 |
| D-Bochum-Stiepel | |
| +: | 4 Jun 1974 |
| D-Bochum | |
