| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alexandre Jonckheer | Groom | 1906 | Sint-Joost-ten-Node | Civil registration marriages |
| Alexandre Jonckheer | Groom | 1909 | Brussel | Civil registration marriages |
| Alexandre Jonckheer | Witness | 1902 | Koekelberg | Civil registration marriages |
| Alexandre Jonckheer | Groom | 1900 | Brussel | Civil registration marriages |
| Alexandre Jonckheer | Witness | 1892 | Brussel | Civil registration marriages |
| Alexandre Jonckheer | Witness | 1905 | Anderlecht | Civil registration marriages |
| Alexandre Joseph Jonckheer>D'herdt | Gewettigd kind | 1888 | Anderlecht | Civil registration marriages |
| Auguste Alexandre Jonckheer | Witness | 1901 | Laken | Civil registration marriages |
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