| Herdam, Emma Emilie | Tönjes | 1950 | Bremen-Mitte |
| Herdam, Franz | 1978 | Bremen-Mitte | |
| Herdam, Joachim Friedrich Wilhelm | 1947 | Bremerhaven | |
| Herdam, Kurt Friedrich Willy | 1909 | Bremen 1 | |
| Herdam, Lieselotte | Schiestl | 1970 | Bremen-Mitte |
| Herdam, Louis August Friedrich Hermann | 1966 | Bremen-Vegesack | |
| Herdam, Wilhelm Karl | 1990 | Bremen-Mitte |