| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jean Baptiste Demessemacker | Witness | 1895 | Ukkel | Civil registration marriages |
| Jean Baptiste Demessemacker | Witness | 1895 | Ukkel | Civil registration marriages |
| Jean Demessemacker | Father of bride | 1851 | Leuven | Civil registration marriages |
| Jean Jacques Demessemacker | Deceased | 2011 | Marseille | Civil registration deaths |
| Jean Jacques Demessemacker | Deceased | 2011 | Marseille | Civil registration deaths |
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