| Haeckermann, Anna Amalie Henriette | Keun | Haeckermann Karl Johann Heinrich, Dr. med. | 1936 |
| Haeckermann, Elsa | Riemer | Haeckermann Hans-Joachim Heinrich Julius | 1969 |
| Haeckermann, Heinz | Haeckermann Karl Johann Heinrich, Dr. med. | 1910 | |
| Haeckermann, Karl Johann Heinrich | 1940 | ||
| Haeckermann, Klara Karoline Malwine Elisab. | Haeckermann Karl Joh. Heinr. | 1899 | |
| Haeckermann, Lorenz Karl Otto Adolf | 1940 |