| Harttgen, Adelheid | 1851 | Bremen | |
| Harttgen, Beta | 1848 | Bremen | |
| Harttgen, Erich | 1874 | Bremen | |
| Harttgen, Gesina | 1839 | Bremen | |
| Harttgen, Hermann George | 1849 | Bremen | |
| Harttgen, Hermann George | 1857 | Bremen | |
| Harttgen, Maria | 1854 | Bremen | |
| Harttgen, Rahel Dorothea Catharina Elisabeth | 1845 | Bremen |