| Kathmann, Alma Johanne | 1910 | Blumenthal | |
| Kathmann, Artur Martin | Mensendiek | 1911 | Blumenthal |
| Kathmann, Ernst Diedrich | Sander | 1895 | Hastedt |
| Kathmann, Friedrich Adolph | 1901 | Blumenthal | |
| Kathmann, Hermann Friedrich | 1906 | Blumenthal | |
| Kathmann, Hermann Heinrich | Sander | 1893 | Hastedt |
| Kathmann, Hermine Katharine | Sander | 1898 | Hastedt |
| Kathmann, Johanne Amalie | 1904 | Blumenthal | |
| Kathmann, Minna Johanne | Sander | 1896 | Hastedt |