| Siebers, Arnold Bertram | Görs | 1884 | Bremen |
| Siebers, Carl Johann Wilhelm | Görß | 1888 | Bremen |
| Siebers, Ella Grete Dora | Seekamp | 1908 | Hemelingen |
| Siebers, Fritz Walter Karl | Reessing | 1911 | Bremen 1 |
| Siebers, Hinrich | Görs | 1879 | Bremen |
| Siebers, Hinrich | Görss | 1880 | Bremen |
| Siebers, Hinrich Karl | Röblitz | 1908 | Bremen 1 |
| Siebers, Johann Christoph | Courier | 1877 | Bremen |
| Siebers, John Christ. Friedrich | Seekamp | 1899 | Hemelingen |
| Siebers, Karl Friedrich Werner | Röblitz | 1910 | Bremen 1 |
| Siebers, Karl Johann Hinrich | Weselau | 1908 | Bremen 1 |
| Siebers, Marie Dorothee | Görs | 1882 | Bremen |
| Siebers, Theodor | Görß | 1881 | Bremen |
| Siebers, Theodor | Reeßing | 1909 | Bremen 1 |
| Siebers, Wilhelm Heinrich | Seekamp | 1901 | Hemelingen |