Commune/Paroisse : Beaumarchès Cayron [Gers] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | CABANOT | 1789 | 1 |
| 2. | CABIRAU | 1789 | 1 |
| 3. | CAMMARTIN | 1780 | 1 |
| 4. | CARGUECOT | 1774 | 1 |
| 5. | CASANOVE | 1706 | 1 |
| 6. | CASSAIGNE | 1711 | 1 |
| 7. | CASTAY | 1740-1791 | 3 |
| 8. | CASTETS | 1788 | 1 |
| 9. | CAUMONT | 1771-1780 | 4 |
| 10. | CAUSSADE | 1762-1788 | 3 |
| 11. | CAYRET | 1716-1790 | 4 |
| 12. | CESSERAC | 1705 | 1 |
| 13. | CHAUVIN | 1777-1786 | 2 |
| 14. | COTLONGUES | 1753-1759 | 2 |
| 15. | COUDOUY | 1792 | 1 |
| 16. | COULAU | 1741 | 1 |
| 17. | COURTOIS | 1760 | 1 |
| 18. | COUSSOULET | 1719 | 1 |
