| Father | Male Gerhardus Hendrikus Koolman |
| Born | cir 1828 | Netherlands |
| Died | ||
| Buried | ||
| Married | 05 Sep 1857 | Brummen, Gelderland, Netherlands |
| Father | ||
| Mother | ||
| Mother | Female Johanna Grube |
| Born | 15 Oct 1829 | Eerbeek, Gelderland, Netherlands |
| Died | ||
| Buried | ||
| Father | Hermanus Gruben | F67511 Group Sheet | |
| Mother | Maria Muurman | F67511 Group Sheet | |