1866 - 
1890-
| Lily Siekmann | |
| *: | 24 Mai 1890 |
| D-Muelheim a.d. Ruhr | |
1892-1951
| Irma Caroline Wilhelmine Sieckmann | |
| *: | 21 Jan 1892 |
| D-Bochum-Stiepel | |
| +: | 29 Jul 1951 |
| D-Dortmund-Luetgendortmund | |
| Augenie Wilhelmine Karoline Siekmann | |
| *: | 31 Mai 1901 |
| D-Dortmund-Brackel | |
| Heinrich Friedrich Wilhelm Siekmann | |
| *: | 11 Okt 1908 |
| D-Dortmund-Brackel | |
|
| Heinrich Friedrich Wilhelm Sieckmann | |
| *: | 19 Jul 1866 |
| D-Bochum-Stiepel | |
1865-1941
| Hulda Caroline Haardt | |
| *: | 18 Sep 1865 |
| D-Bochum-Stiepel | |
| oo: | 12 Apr 1890 |
| D-Bochum-Stiepel | |
| +: | 9 Dez 1941 |
| D-Massen | |
