| Kowal, Anna Nepomucena | Ciesielski | 1904 | Bremen 1 |
| Kowal, Friedrich Wilhelm | 1915 | Bremen 1 | |
| Kowal, Jan | 1987 | Bremen-Nord | |
| Kowal, Marta Christine | Frels | 1959 | Bremen-Hemelingen |
| Kowal, Petra Doris | 1955 | Bremen-Mitte | |
| Kowal, Theodor | 1963 | Bremen-Mitte | |
| Kowal, Viktoria | Tobias | 1982 | Bremen-Nord |