| Benkenstein, Sophie Christ. Bertha | 1881 | Bremen | |
| Benkenstein, Karl Aug. Louis | 1898 | Bremen | |
| Benkenstein, Johanne Ernestine Lina | 1909 | Horn | |
| Benkenstein, Karl August Louis | 1915 | Blumenthal | |
| Benkenstein, Karl August Louis | 1924 | Bremen 2 (Hastedt) | |
| Benkenstein, Carl Herm. | 1928 | Bremen 1 | |
| Benkenstein, Wilh. Fritz | 1932 | Bremen 1 | |
| Benkenstein, Paul | 1941 | Bremen-Mitte |