| Ketels, Christiane Wilhelmine Henriette Ina | 1911 | Bremen 1 | |
| Ketels, Ernst Heinr. | 1934 | Bremen 1 | |
| Ketels, Gertrud | 1923 | Bremen 1 | |
| Ketels, Henriette Ellma | 1911 | Bremen 1 | |
| Ketels, Hermann Christian | 1937 | Bremen 1 | |
| Ketels, Lieschen Annemarie Wilhelmine | 1940 | Bremen-Mitte | |
| Ketels, Olga Stefanie Charlotte Georgia | 1919 | Bremen 1 |