| Nikolai, Christian Friedr. Louis | 1883 | Bremen | |
| Nikolai, Friedr. Wilh. | 1891 | Bremen | |
| Nikolai, Friedr. Wilh. Carl | 1907 | Bremen 1 | |
| Nikolai, Johanne Christiane Wilhelmine Else | 1897 | Bremen | |
| Nikolai, Johanne Margarethe | 1907 | Bremen 1 | |
| Nikolai, Marie Elise Agnes | 1920 | Bremen 5 (Gröpelingen) |