| Wittwer, Andreas Gustav | Hogrefe | 1890 | Hemelingen |
| Wittwer, Caroline Magdalene | Hogrefe | 1879 | Hemelingen |
| Wittwer, Ernst Hermann | Hogrefe | 1884 | Hemelingen |
| Wittwer, Fried. Wilh. | Hogrefe | 1887 | Hemelingen |
| Wittwer, Georg Andreas | Kothrade | 1912 | Bremen 2 (Hastedt) |
| Wittwer, Hermann Fried. | Hogrefe | 1881 | Hemelingen |
| Wittwer, Hermann Gottlieb | Kothrade | 1907 | Hemelingen |
| Wittwer, Johannes Hermann | Hagrefe (o) | 1894 | Hemelingen |