| Isler, Max Carl Wilh. Heinrich | Luthmer | 1895 | Bremen |
| Isler, Walter Ferd. | Luthmer | 1896 | Bremen |
| Isler, Anna Margarethe Johanne | Luthmer | 1899 | Bremen |
| Isler, Hans Adalbert | Luthmer | 1903 | Bremen 1 |
| Isler, Ilse Margarete Gertrud | Luthmer | 1906 | Bremen 1 |
| Isler, Herta Elisabeth | Luthmer | 1910 | Bremen 1 |