| Sieker, Anton Christopher Wilhelm | 1876 | Lesum | |
| Sieker, August | 1977 | Bremen-Mitte | |
| Sieker, Friederike Marie Mathilde | Werning | 1978 | Bremen-Mitte |
| Sieker, Friedrich Conrad | 1875 | Lesum | |
| Sieker, Friedrike | 1883 | Lesum | |
| Sieker, Hermann Anton Christoph | 1912 | Osterholz | |
| Sieker, Klara | 1955 | Bremen-Vegesack | |
| Sieker, Wilma Justine | Hoopmann | 1965 | Bremen-Mitte |