| Name | Role | Place | Source | |
|---|---|---|---|---|
| Oscar Henri Keyaerts | Groom | 1910 | Elsene | Civil registration marriages |
| Oscar Keyaerts | Witness | 1884 | Schaarbeek | Civil registration marriages |
| Oscar Keyaerts | Witness | 1899 | Brussel | Civil registration marriages |
| Oscar Keyaerts | Witness | 1899 | Brussel | Civil registration marriages |
| Oscar Keyaerts | Witness | 1888 | Schaarbeek | Civil registration marriages |
| Oscar Keyaerts | Witness | 1896 | Sint-Stevens-Woluwe | Civil registration births |
| Oscar Marie Auguste Keyaerts | Groom | 1885 | Elsene | Civil registration marriages |
| Oscar Marie Auguste Keyaerts | Child | 1860 | Tienen | Civil registration births |
| Oscar Marie Auguste Keyaerts | Witness | 1892 | Sint-Gillis | Civil registration marriages |
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