| Koestra, Auguste Sophie Caroline | Sippel | 1933 | Bremen 1 |
| Koestra, Douwe | 1885 | Bremen | |
| Koestra, Franz August | 1883 | Bremen | |
| Koestra, Gerhard Franz Gustav | 1883 | Bremen | |
| Koestra, Julie | Knoblich | 1974 | Bremen-Mitte |
| Koestra, Pieter | 1895 | Bremen | |
| Koestra, Riekje | Balk | 1893 | Bremen |