| Name | Role | Place | Source | |
|---|---|---|---|---|
| Daniel Marcelles Georg de Swart | Gelastigde | 1815 | Leeuwarden | Notarial records |
| Emilius Marcelles de Swart | Compagnon | 1859 | Heerenveen | Notarial records |
| Marcelles de Swart | 1824 | Wageningen | Civil registration deaths | |
| Marcelles de Swart | Father | 1869 | Wageningen | Civil registration deaths |
| Marcelles de Swart | Father | 1865 | Wageningen | Civil registration deaths |
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