| Name | Role | Place | Source | |
|---|---|---|---|---|
| Octave Callens | Groom | 1904 | Brussel | Civil registration marriages |
| Octave Callens>Van Cleven | Gewettigd kind | 1912 | Brussel | Civil registration marriages |
| Octave Gustave Callens | Groom | 1901 | Kortijk | Civil registration marriages |
| Octave Gustave Callens | Groom | 1901 | Kortijk | Civil registration marriages |
| Octave Pierre Callens | Deceased | 1998 | Roubaix | Civil registration deaths |
| Octave Pierre Callens | Deceased | 1998 | Roubaix | Civil registration deaths |
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