| Name | Role | Place | Source | |
|---|---|---|---|---|
| Aeltien Cousius | Registered | 1657 | Zutphen | Orphan Chamber Register |
| Caspar Cousius | Registered | 1657 | Zutphen | Orphan Chamber Register |
| Casper Cousius | Registered | 1636 | Zutphen | Civil books |
| Cousius | Registered | 1747 | Amsterdam | Notarial records |
| Edward Cousius | Mention | 1818 | Harlingen | Notarial records |
| Edward Cousius | Mention | 1818 | Harlingen | Notarial records |
| Gerard Cousius | Groom | 1677 | Breda | Church records marriages |
| Gerrart Cousius | Groom | 1676 | Woerden | Church records marriages |
| Jan Cousius | Registered | 1838 | Tongelre | Population register |
| Maria Cousius | Mother | 1640 | Deventer | Church records baptisms |
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