| Duczmal, Edmund | 1908 | Blumenthal | |
| Duczmal, Helena | 1910 | Blumenthal | |
| Duczmal, Josef | Biniek | 1912 | Blumenthal |
| Duczmal, Stanislaus | Fluder | 1909 | Grohn |
| Duczmal, Stanislaver | Rudowicz | 1900 | Bremen |
| Duczmal, Stefana | Flader | 1908 | Grohn |
| Duczmal, Wanda | Duczmal | 1908 | Bremen 1 |