1869 - 
1902-
| Emil Friedrich Beckmann | |
| *: | 15 Jun 1902 |
| D-Bochum-Stiepel | |
1904-
| Willy Albert Beckmann | |
| *: | 28 Aug 1904 |
| D-Bochum-Stiepel | |
1906-
| Julius Wilhelm Beckmann | |
| *: | 22 Dez 1906 |
| D-Bochum-Stiepel | |
1911-
| Julius Heinrich Beckmann | |
| *: | 28 Nov 1911 |
| D-Bochum-Stiepel | |
1869-
| Friedrich Beckmann | |
| *: | 17 Feb 1869 |
| D-Bochum-Stiepel | |
1879-
| Lina Julie Schemberg | |
| *: | 18 Okt 1879 |
| D-Witten-Herbede | |
| oo: | 29 Jun 1900 |
| D-Bochum-Stiepel | |
