| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jacques Deknop | Witness | 1879 | Ukkel | Civil registration marriages |
| Jacques Deknop | Witness | 1881 | Sint-Gillis | Civil registration marriages |
| Jacques Deknop | Witness | 1891 | Sint-Jans-Molenbeek | Civil registration marriages |
| Jacques Deknop | Witness | 1899 | Anderlecht | Civil registration marriages |
| Jacques Deknop | Child | 1853 | Lembeek | Civil registration births |
| Jacques Deknop | Witness | 1878 | Schaarbeek | Civil registration marriages |
| Jean Jacques Deknop | Father of bride | 1894 | Sint-Gillis | Civil registration marriages |
| Jean Jacques Deknop | Father of groom | 1900 | Sint-Genesius-Rode | Civil registration marriages |
| Jean Jacques Deknop | Father of bride | 1893 | Sint-Gillis | Civil registration marriages |
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