| Siemann, Conrad Richard | 1960 | ||
| Siemann, Dorothea Albertine Marie | Retzlaff | Siemann Eduard Ludwig Friedrich | 1919 |
| Siemann, Dorothee Marie Sophie | Paysan | Siemann August Heinrich Wilhelm | 1951 |
| Siemann, Eduard Ludwig Friedrich | 1917 | ||
| Siemann, Elisabeth Henriette Wilhelmine Bernhardine | Schievink | Siemann Ernst Eduard Franz | 1961 |
| Siemann, Ernst | 1910 | ||
| Siemann, Ernst Eduard Franz | 1916 | ||
| Siemann, Friedrich Christian Ferdinand | 1961 | ||
| Siemann, Heinrich | 1918 | ||
| Siemann, Heinrich Ludwig Carl | 1901 | ||
| Siemann, Henriette Sophie | Siemann Heinrich Ludwig Carl | 1900 | |
| Siemann, Luise Johanna Emilie Auguste | Schievink | Siemann, Dr. Ing. Conrad Richard | 1973 |
| Siemann, Marie Catharine | Starke | Siemann Friedrich Christian Ferdinand | 1933 |
| Siemann, Marie Louise Adele | Garke | Siemann Friedrich Christian Ferdinand | 1971 |