| Wietgrefe, August | Berndt | 1907 | Bremen 1 |
| Wietgrefe, Erika Auguste Eleonore | Ohlendorf | 1904 | Bremen 1 |
| Wietgrefe, Heinrich | Berndt | 1908 | Bremen 1 |
| Wietgrefe, Karl Friedrich August | Wünschiers | 1912 | Blumenthal |
| Wietgrefe, Karl Heinrich | 1910 | Blumenthal | |
| Wietgrefe, Martha Dora | Berndt | 1911 | Blumenthal |
| Wietgrefe, Wilhelm Heinrich Johannes | Wünschiers | 1911 | Blumenthal |