| Rennert, Carl August | Bartikowski | 1902 | Bremen 1 |
| Rennert, Charlotte Juliane | Bartikowski | 1894 | Bremen |
| Rennert, Elsa Emma | Bartikowski | 1892 | Bremen |
| Rennert, Emma Frieda | Bartikowski | 1898 | Bremen |
| Rennert, Olga Ernestine Wilhelmine | Bartikowski | 1890 | Bremen |
| Rennert, Otto August Carl | Bartikowski | 1896 | Bremen |
| Rennert, Therese Regine Gretchen | Ruhmkorf | 1896 | Bremen |