| Isenbeck, Otto Carl | Seidler | 1893 | Hastedt |
| Isenbeck, Marie Helene | Fröllje | 1902 | Bremen 1 |
| Isenbeck, Julius Carl Th. | Seidler | 1881 | Bremen |
| Isenbeck, Johanne Marie | Fröllje | 1901 | Bremen |
| Isenbeck, Johanne Elise | Seidler | 1891 | Hastedt |
| Isenbeck, Joh. Christine | Seidler | 1884 | Bremen |
| Isenbeck, Friedrich Heinrich Georg | Seidler | 1882 | Bremen |
| Isenbeck, Christian Otto Hermann | Meyer | 1912 | Bremen 1 |
| Isenbeck, Caroline | Seidler | 1887 | Hastedt |