| Seyfert, Emile Johanne | Gartelmann | 1886 | Bremen |
| Seyfert, Friedrich Wilhelm Gustav | Gartelmann | 1885 | Bremen |
| Seyfert, Margarete | Gartelmann | 1898 | Bremen |
| Seyfert, Emma Katharine Elise Anna | Bohlen | 1909 | Bremen 1 |
| Seyfert, Christian | Gartelmann | 1896 | Woltmershausen |
| Seyfert, Friedrich | Gartelmann | 1891 | Woltmershausen |
| Seyfert, Friedrich Richard Gustav | Gartelmann | 1888 | Woltmershausen |
| Seyfert, Gustav Albert Emil | Gartelmann | 1890 | Woltmershausen |