| Jansa, Peter Anton | Jansa | 1893 | Bremen |
| Jansa, Meta Frieda Johanne | Lüttge | 1894 | Bremen |
| Jansa, Marie Auguste | Barta | 1896 | Bremen |
| Jansa, Rosalie Frieda | Lüttge | 1897 | Bremen |
| Jansa, Johanne Friederike | Lüttge | 1898 | Bremen |
| Jansa, Marie Wilhelmine | Kynclovo | 1902 | Hemelingen |
| Jansa, Peter Rudolf | Lüttge | 1903 | Bremen 1 |
| Jansa, Heinrich | Lasek | 1906 | Bremen 1 |