| Name | Role | Place | Source | |
|---|---|---|---|---|
| Charles François Emile De Joncker | Father | 1902 | Marienbourg | Civil registration births |
| Emile De Joncker | Witness | 1905 | Brussel | Civil registration marriages |
| Emile De Joncker | Witness | 1897 | Sint-Joost-ten-Node | Civil registration marriages |
| Emile Gustave Joseph De Joncker | Groom | 1912 | Brussel | Civil registration marriages |
| Emile Joncker | Witness | 1901 | Brussel | Civil registration marriages |
| Emile Joncker | Witness | 1898 | Brussel | Civil registration marriages |
| Emile Joseph Joncker | Groom | 1894 | Liège | Civil registration marriages |
| Emile Ulric Herman Joseph Joncker | Groom | 1894 | Brussel | Civil registration marriages |
| Emile Ulrich Joseph Joncker | Groom | 1907 | Sint-Gillis | Civil registration marriages |
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