Commune/Paroisse : Dunkerque
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | COSCHE | 1673 | 1 |
| 2. | COSIN | 1672 | 1 |
| 3. | COSSAIN | 1682 | 1 |
| 4. | COSSE | 1663 | 1 |
| 5. | COSSEIN | 1647 | 1 |
| 6. | COSSENEIRE | 1696 | 1 |
| 7. | COSSEYN | 1643 | 1 |
| 8. | COSSY | 1697 | 1 |
| 9. | COSTEAU | 1642 | 1 |
| 10. | COSTEN | 1624 | 1 |
| 11. | COSTENOBEL | 1626-1699 | 5 |
| 12. | COSTENOBLE | 1693-1698 | 3 |
| 13. | COSTER | 1646-1682 | 2 |
| 14. | COSTIER | 1651 | 1 |
| 15. | COSTIN | 1637 | 1 |
| 16. | COSTINOBLE | 1632 | 1 |
| 17. | COSYN | 1624-1694 | 4 |
| 18. | COSYNS | 1630 | 1 |