| Name | Role | Place | Source | |
|---|---|---|---|---|
| Louis Joseph Olislaeger>Olislager | Gewettigd kind | 1869 | Elsene | Civil registration marriages |
| Louis Olislaeger | Witness | 1903 | Elsene | Civil registration marriages |
| Louis Olislaeger | Witness | 1898 | Elsene | Civil registration marriages |
| Louis Olislaeger | Groom | 1899 | Elsene | Civil registration marriages |
| Robert Louis Joseph Olislaeger | Child | 1893 | Liège | Civil registration births |
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