| Name | Role | Place | Source | |
|---|---|---|---|---|
| Constant Ratzborg | Witness | 1884 | Sint-Jans-Molenbeek | Civil registration marriages |
| Constant Ratzborg | Witness | 1885 | Anderlecht | Civil registration marriages |
| Constant Ratzborg | Occupant | 1856 | Aalst | Population register |
| Constant Ratzborg | Witness | 1873 | Brussel | Civil registration marriages |
| Constant Ratzborg | Witness | 1882 | Brussel | Civil registration marriages |
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