| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alexandre Decoster>Mommens | Gewettigd kind | 1871 | Brussel | Civil registration marriages |
| Alexandre Mommens | Groom | 1899 | Brussel | Civil registration marriages |
| Alexandre Mommens | Witness | 1910 | Anderlecht | Civil registration marriages |
| Alexandre Mommens | Child | 1870 | Leuven | Civil registration births |
| Alexandre Mommens | Witness | 1907 | Brussel | Civil registration marriages |
| Alexandre Mommens | Witness | 1904 | Sint-Gillis | Civil registration marriages |
| Alexandre Mommens | Witness | 1911 | Brussel | Civil registration marriages |
| Marcel Alexandre Joseph Mommens | Deceased | 2006 | Issy-les-Moulineaux | Civil registration deaths |
| Marcel Alexandre Joseph Mommens | Deceased | 2006 | Issy-les-Moulineaux | Civil registration deaths |
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