| Name | Role | Place | Source | |
|---|---|---|---|---|
| Mathijs Joseph Knops | Father | 1835 | Wittem | Civil registration births |
| Mathijs Joseph Knops | Deceased | 1859 | Wittem | Civil registration deaths |
| Mathijs Joseph Knops | Child | 1833 | Kerkrade | Civil registration births |
| Mathijs Joseph Knops | Father | 1832 | Wittem | Civil registration births |
| Mathijs Joseph Knops | Deceased | 1862 | Kerkrade | Death duties files |
| Mathijs Joseph Knops | Father | 1897 | Wittem | Civil registration deaths |
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