| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Marinus Contant | Registered | 1913 | 's-Gravenhage | Population register |
| Jan Marinus Contant | Registered | Delft | Family cards | |
| Jan Marinus Contant | Child | 1923 | Roosendaal en Nispen | Civil registration births |
| Jan Marinus Contant | Registered | 1923 | Roosendaal | Population register |
| Jan Marinus Contant | Child | 1923 | Roosendaal | Civil registration births |
| Jan Marinus Petit Contant | Deceased | 1844 | Nieuwvliet | Civil registration deaths |
| Jan Marinus Petit Contant | Child | 1842 | Nieuwvliet | Civil registration births |
| Marinus Jan Contant | Registered | 1862 | Werkendam | Population register |
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