| Kathmann, Willi Heinrich | 1939 | Grohn | |
| Kathmann, Artur Martin | 1937 | Blumenthal | |
| Kathmann, Alma Johanne | 1930 | Aumund | |
| Kathmann, Johanne | 1929 | Blumenthal | |
| Kathmann, Willi Heinr. Friedr. | 1927 | Bremen 1 | |
| Kathmann, Hermine Katharine | 1923 | Bremen 2 (Hastedt) | |
| Kathmann, Marie Hinriette | 1918 | Blumenthal | |
| Kathmann, Martha Helene | 1913 | Bremen 1 | |
| Kathmann, Anna Margarethe | 1910 | Lesum | |
| Kathmann, Joh. Wilh. Karl Ed. | 1893 | Bremen | |
| Kathmann, Heinrich Diedrich | 1892 | Hastedt | |
| Kathmann, Marie Elis. Dor. | 1888 | Bremen |