| Helmdach, Auguste | 1900 | Bremen | |
| Helmdach, Auguste Erna Dora | 1935 | Aumund | |
| Helmdach, Friedrich Otto | 1930 | Grohn | |
| Helmdach, Friedrich Wilhelm | 1929 | Vegesack | |
| Helmdach, Friedrich Wilhelm Christian | 1922 | Aumund | |
| Helmdach, Heinrich Hermann Wilhelm Carl Johannes Louis | 1935 | Aumund | |
| Helmdach, Johann Otto Friedrich | 1934 | Aumund | |
| Helmdach, Karl Heinrich Gustav | 1935 | Aumund |