1851 - 
| Willi Georg Marquardt 1900- |
| Willi Georg Marquardt | |
| *: | 25 Jun 1900 |
| Osnabrück | |
| Sophie Katharina Hedwig Fremdling | |
| *: | 06 Jul 1904 |
| Osnabrück | |
| Wilhelm Marquardt 1851- |
| Wilhelm Marquardt | |
| *: | 05 Mai 1851 |
| Moorburg | |
Julie Auguste Richter 1874- |
| Julie Auguste Richter | |
| *: | 15 Jun 1874 |
| Lotte | |
