| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alexander Callens | Witness | 1836 | 's-Gravenhage | Civil registration marriages |
| Alexander Callens | Witness | 1824 | Brussel | Civil registration marriages |
| Alexander Callens | Father | 1833 | 's-Gravenhage | Civil registration deaths |
| Alexander Callens | Witness | 1833 | 's-Gravenhage | Civil registration marriages |
| Alexander Callens | Deceased | 1844 | 's-Gravenhage, Arras in Frankrijk | Civil registration deaths |
| Alexander Camiel Callens | Deceased | 1996 | Izegem | Prayer card collection |
| Alexander Eugenius Callens | Deceased | Gent | Civil registration deaths | |
| Alexander Eugenius Callens | Deceased | Gent | Civil registration deaths | |
| Alexander Franciscus Callens | Deceased | 1851 | Gent | Civil registration deaths |
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