| Kochan, Ella Johanne | Sukowski | 1939 | Freie Hansestadt Bremen |
| Kochan, Hermann Heinr Fritz | 1935 | Bremen 1 | |
| Kochan, Hermann Heinrich Fritz | 1940 | Bremen-Mitte | |
| Kochan, Karl Heinr. Max. | 1929 | Bremen 1 | |
| Kochan, Paul Friedr. Karl | 1926 | Bremen 1 | |
| Kochan, Paula Johanne | 1935 | Bremen 1 | |
| Kochan, Paula Johanne | Kochan | 1941 | Bremen-Mitte |
| Kochan, Walter Karl Paul | 1929 | Bremen 1 | |
| Kochan, Walter Karl Paul | 1936 | Bremen 1 |