| Name | Role | Place | Source | |
|---|---|---|---|---|
| Martin Constant Alphonse Lens | Child | 1888 | Leuven | Civil registration births |
| Martin Lens | Witness | 1913 | Leuven | Civil registration marriages |
| Martin Lens | Father of groom | 1880 | Brussel | Civil registration marriages |
| Martin Lens | Father | 1801 | Mons | Civil registration deaths |
| Martin Lens | Father | Vincennes/Parijs | Studbooks | |
| Martin Sebrie>Van Lens | Gewettigd kind | 1840 | Leuven | Civil registration marriages |
| Martin Van Lens | Father | 1877 | Leuven | Civil registration births |
| Martin Van Lens | Witness | 1871 | Leuven | Civil registration marriages |
| Pierre Martin Lens | Groom | 1901 | Anderlecht | Civil registration marriages |
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