| Holsing, Carl Eugen | Pfeifer | 1891 | Bremen |
| Holsing, Friederike Johanne Karoline Liselotte | Kuba | 1912 | Bremen 1 |
| Holsing, Georg Friedr. Theod. | Pfeifer | 1897 | Bremen |
| Holsing, Gerhard | Pfeifer | 1899 | Bremen |
| Holsing, Heinrich Friedr. Ernst | Pfeifer | 1884 | Bremen |
| Holsing, Johannes Carl Christian | Pfeifer | 1893 | Bremen |
| Holsing, Wilh. Friedr. | Pfeifer | 1887 | Bremen |
| Holsing, Wilh. Oscar | Pfeifer | 1889 | Bremen |