| Igenhardt, Georg Friedrich Ernst | 1939 | Freie Hansestadt Bremen | |
| Igenhardt, Friedr. Herm. Heinrich | 1937 | Bremen 1 | |
| Igenhardt, Gust. Aug. Heinr. Diedr. | 1910 | Bremen 1 | |
| Igenhardt, Catharine Wilhelmine Elisabeth | 1904 | Bremen 1 | |
| Igenhardt, Anna Sophie Friederike | 1901 | Bremen | |
| Igenhardt, Gesine Charlotte Christine Anna | 1900 | Bremen | |
| Igenhardt, Johanna Reb. | Groppe | 1887 | Bremen |
| Igenhardt, Engeline Johanne Thomas. | 1881 | Bremen | |
| Igenhardt, Friedr. Eduard | 1879 | Bremen | |
| Igenhardt, Joh. Heinr. | 1876 | Bremen |