| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Leonard Mathijs Backus | Child | 1914 | Echt | Civil registration births |
| Jan Mathijs Backus | Father | 1841 | Nederweert | Civil registration deaths |
| Jan Mathijs Backus | Partner | 1840 | Nederweert | Death duties files |
| Jan Mathijs Backus | Father of groom | 1877 | Roosteren | Civil registration marriages |
| Jan Mathijs Backus | Father | 1850 | Roosteren | Civil registration births |
| Jan Mathijs Backus | Groom | 1835 | Roosteren | Civil registration marriages |
| Jan Mathijs Backus | Father | 1854 | Roosteren | Civil registration births |
| Jan Mathijs Backus | Father | 1886 | Roosteren | Civil registration deaths |
| Jan Mathijs Backus | Father | 1921 | Susteren | Civil registration deaths |
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