| Sieberns, Anton Heinrich | 1891 | Blumenthal | |
| Sieberns, Anton Heinrich | 1915 | Aumund I | |
| Sieberns, Henrike Marie | 1921 | Aumund | |
| Sieberns, Hermann Hinrich | 1922 | Bremen 1 | |
| Sieberns, Marie Amalie | 1940 | Bremen-Burglesum | |
| Sieberns, Marie amlalie | 1930 | Bremen 1 | |
| Sieberns, Marie Gesine | 1908 | Bremen 1 | |
| Sieberns, Martin | 1929 | Grohn |