| Name | Role | Place | Source | |
|---|---|---|---|---|
| Albert Jean Auguste Henri De Trez | Father | 1884 | Liège | Civil registration births |
| Auguste Adolphe De Trez | Groom | 1897 | Sint-Jans-Molenbeek | Civil registration marriages |
| Auguste De Trez | Witness | 1881 | Brussel | Civil registration marriages |
| Auguste De Trez | Witness | 1890 | Brussel | Civil registration marriages |
| Auguste De Trez | Witness | 1820 | Sint-Jans-Molenbeek | Civil registration marriages |
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