| Olthoff, Adolph Georg | Kämper | 1895 | Bremen |
| Olthoff, Anna Marie Elise | Kämper | 1882 | Bremen |
| Olthoff, Dethard Diedr. Bernh. | Kämper | 1883 | Bremen |
| Olthoff, Ehlert Wilhelm | Harjes | 1879 | Bremen |
| Olthoff, Ehlert Wilhelm | Möller | 1903 | Bremen 1 |
| Olthoff, Joh.e Fried.ke Wilh.e | Kämper | 1880 | Bremen |
| Olthoff, Johann Friedrich Wilhelm | Kämper | 1897 | Bremen |
| Olthoff, Johanne | Kunz verw. Olthoff | 1881 | Bremen |
| Olthoff, Käthchen Henny Annie | Ohlert | 1899 | Bremen |
| Olthoff, Mathilde Dorothee | Kämper | 1890 | Bremen |
| Olthoff, Rob. Carl | Ohlert | 1900 | Bremen |
| Olthoff, Sophie Wilhelmine Margarethe | Kämper | 1888 | Bremen |