| Merczak, Anna | Karwacka | 1908 | Bremen 1 |
| Merczak, Felix | Karwacka | 1906 | Bremen 1 |
| Merczak, Franz Ludwig | Witek | 1912 | Bremen 1 |
| Merczak, Franziska | Karwacka | 1905 | Bremen 1 |
| Merczak, Helene | Brzostowska | 1913 | Bremen 1 |
| Merczak, Josef | Karwcka | 1903 | Bremen 1 |
| Merczak, Marianna | Karwacka | 1907 | Bremen 1 |
| Merczak, Wladislaus | Witek | 1911 | Bremen 1 |
| Merczak, Wladislawa | Stefaniak | 1912 | Bremen 1 |