| Name | Role | Place | Source | |
|---|---|---|---|---|
| Johan Friederich Jonkerman | Witness | 1770 | Leiden | |
| Johan Hendrik Jonkerman | Witness | 1772 | Leiden | |
| Johan Jonkerman | Deceased | 1893 | Zaltbommel | Civil registration deaths |
| Johan Jonkerman | Registered | Zaltbommel | Population register | |
| Johan Jonkerman | Child | 1893 | Zaltbommel | Civil registration births |
| Johan Jonkerman | Registered | Tiel | Population register | |
| Johan Jonkerman | Child | 1893 | Zaltbommel | Civil registration births |
| Johan Jonkerman | Deceased | 1893 | Zaltbommel | Civil registration deaths |
| Johan Jonkerman | Child | 1893 | Zaltbommel | Civil registration births |
| Johan Jonkerman | Deceased | 1893 | Zaltbommel | Civil registration deaths |
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