| Name | Role | Place | Source | |
|---|---|---|---|---|
| Constantin Cool | Child | 1806 | Gyzegem | Civil registration births |
| Constantin Cool | Erkend kind | 1815 | Gyzegem | Civil registration marriages |
| Constantin Cool | Groom | 1865 | Brussel | Civil registration marriages |
| Hector Constantin Jean Baptiste Antoine Cool | Father | 1899 | Liège | Civil registration deaths |
| Hector Constantin Jean Baptiste Antoine Cool | Father | 1901 | Liège | Civil registration births |
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