| Name | Role | Place | Source | |
|---|---|---|---|---|
| Coenraad Gerhard Herman H. W. Geesink | Mention | 1897 | Nijmegen | Notarial records |
| Coenraad Gerhard Herman H. W. Geesink | Mention | 1897 | Nijmegen | Notarial records |
| Coenraad Gerhard Herman H. W. Geesink | Mention | 1897 | Nijmegen | Notarial records |
| Herman W. Geesink | Staff member | 1826 | Utrecht | Register of staff |
| Herman W. Geesink | Registered | Apeldoorn | Population register | |
| Herman W. Geesink | Registered | 1850 | Utrecht | Register of staff |
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