| Name | Role | Place | Source | |
|---|---|---|---|---|
| .. Ditlof Tjassens | Registered | 1807 | Soest | Officiersboekjes |
| Anna Elisabeth Ditlof Tjassens | Registered | Delft | Population register | |
| Anna Elisabeth Ditlof Tjassens | Registered | 1839 | Harlingen | Population register |
| Annasus Louis Ditlof Tjassens | Registered | Vincennes/Parijs | Studbooks | |
| Ditlof Tjassens | Father | Vincennes/Parijs | Studbooks | |
| Ditlof Tjassens | Registered | Amsterdam | Waterloo gratificaties 1815 | |
| Lodewijk Ditlof Tjassens | Registered | 1815 | Notarial records | |
| Lodewijk Ditlof Tjassens | Registered | 1815 | Notarial records | |
| Lodewijk Ditlof Tjassens | Registered | 1815 | Notarial records |
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