| Seiferth, Arthur Emil | Rosenberg | 1906 | Bremen 1 |
| Seiferth, Eduard Paul | Rosenberg | 1911 | Bremen 1 |
| Seiferth, Friedrich Franz | Rosenberg | 1907 | Bremen 1 |
| Seiferth, Friedrich Hermann | Rosenberg | 1898 | Bremen |
| Seiferth, Friedrich Oswald | Rosenberg | 1903 | Bremen 1 |
| Seiferth, Friedrich Otto | Rosenberg | 1904 | Bremen 1 |
| Seiferth, Friedrich Wilhelm | Rosenberg | 1912 | Bremen 1 |
| Seiferth, Hedwig Alma | Rosenberg | 1910 | Bremen 1 |
| Seiferth, Johann Heinrich Friedrich | Rosenberg | 1908 | Bremen 1 |
| Seiferth, Johanne Catharine Hermanda | Rosenberg | 1902 | Bremen 1 |
| Seiferth, Oltmann Otto Heinrich | Rosenberg | 1899 | Bremen |