| Sipkens, Amalie Luise Pauline | 1937 | Bremen 1 | |
| Sipkens, Auke Rinze | 1908 | Bremen 1 | |
| Sipkens, Auke Rinze | 1914 | Bremen 1 | |
| Sipkens, Elise Konradine | 1939 | Freie Hansestadt Bremen | |
| Sipkens, Gesine Anna | 1942 | Bremen-Mitte | |
| Sipkens, Luise Albertine Gesina | 1933 | Bremen 4 (Horn) | |
| Sipkens, Luite Jacob | 1909 | Bremen 1 | |
| Sipkens, Maria Elsa | 1938 | Bremen 1 | |
| Sipkens, Rinze | 1919 | Bremen 1 | |
| Sipkens, Rinze | 1938 | Freie Hansestadt Bremen |