1870 - 1942 (72 Jahre)
1910-
| Wilhelm Plessmann | |
| *: | 27 Jan 1910 |
| D-Bochum-Stiepel | |
1903-
| Friedrich Emil Plessmann | |
| *: | 18 Feb 1903 |
| D-Bochum-Stiepel | |
1903-1983
| Mathilde Elfriede Plessmann | |
| *: | 18 Feb 1903 |
| D-Bochum-Stiepel | |
| +: | 25 Jan 1983 |
| D-Hattingen | |
|
1870-1942
| Adeline Voskuhl | |
| *: | 29 Aug 1870 |
| D-Bochum-Stiepel | |
| +: | 23 Okt 1942 |
| D-Bochum-Stiepel | |
1879-
| Friedrich Plessmann | |
| *: | 31 Okt 1879 |
| D-Witten-Herbede | |
| oo: | 29 Mrz 1901 |
| D-Bochum-Stiepel | |
