| Schwermann, Fridrich Wilhelm | Laging | 1883 | Bremen |
| Schwermann, Friedrich Wilhelm | Laging | 1881 | Bremen |
| Schwermann, Friedrich Wilhelm Heinrich | Laging | 1879 | Bremen |
| Schwermann, Heinrich Diedrich | Laging | 1885 | Bremen |
| Schwermann, Hermann Diedrich | Laging | 1894 | Bremen |