| Cech, Alfred Adolf | Weidlich richtig Presia | 1912 | Blumenthal |
| Cech, Anton | Schlesinger | 1907 | Bremen 5 (Gröpelingen) |
| Cech, Herta Else | 1910 | Blumenthal | |
| Cech, Julie Barbara | Sedlar | 1897 | Bremen |
| Cech, Karl Erich | 1908 | Blumenthal | |
| Cech, Konrad | Tripak | 1906 | Hemelingen |