| Bretthorst, Betty Sophie Magd. Doroth. | Schilling | 1903 | Bremen 1 |
| Bretthorst, Chrstn. Ludw. Frdr. | Seidel | 1898 | Bremen |
| Bretthorst, Chrstn. Ludw. Friedr. | Seidel | 1894 | Bremen |
| Bretthorst, Ernst | Dorenberg | 1902 | Bremen 1 |
| Bretthorst, Johann Carl | Dorenberg | 1899 | Bremen |
| Bretthorst, Johann Friedrich | Schilling | 1902 | Bremen, Bremen 1 |
| Bretthorst, Ludwig | Schilling | 1900 | Bremen |
| Bretthorst, Ludwig | Wicke | 1876 | Werderland |
| Bretthorst, Rosine Elisab. | Seidel | 1896 | Bremen |
| Bretthorst, Theod. Hans | Darenberg | 1900 | Bremen |