| Gerz, Bruno | Behlmer | 1897 | Schwachhausen |
| Gerz, Gretchen | Behlmer | 1908 | Bremen 2 (Hastedt) |
| Gerz, Herwald | Behlmer | 1904 | Bremen 1 |
| Gerz, Lucinde | Behlmer | 1904 | Bremen 2 (Hastedt) |
| Gerz, Otto | Behlmer | 1899 | Schwachhausen |
| Gerz, Richard | Behlmer | 1896 | Bremen |
| Gerz, Theodor | Behlmer | 1902 | Bremen 1 |
| Gerz, Walter | Behlmer | 1905 | Bremen 2 (Hastedt) |