| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gerardus Lambertus Lefebvre | Father | 1895 | Rotterdam | Civil registration deaths |
| Gerardus Lambertus Lefebvre | Father | 1895 | Rotterdam | Civil registration deaths |
| Joannes Lambertus Lefebvre | Child | 1766 | Seraing | Church records baptisms |
| Lambertus Lefebvre | Child | 1829 | Maastricht | Civil registration births |
| Lambertus Lefebvre | Deceased | 1829 | Maastricht | Civil registration deaths |
| Lambertus Lefebvre | Father | 1862 | Maastricht | Civil registration deaths |
| Lambertus Lefebvre | Father | 1851 | Maastricht | Civil registration deaths |
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