Commune/Paroisse : Beaumarchès Cayron [Gers] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | CABIRO | 1764-1790 | 3 |
| 2. | CASANOVE | 1701 | 1 |
| 3. | CASTAY | 1754-1758 | 2 |
| 4. | CASTETS | 1735-1738 | 2 |
| 5. | CAUMONT | 1750-1778 | 7 |
| 6. | CAUSSADE | 1700-1783 | 11 |
| 7. | CAYRET | 1705-1716 | 2 |
| 8. | CAYRONET | 1764 | 1 |
| 9. | CESERAC | 1700-1703 | 2 |
| 10. | COLS | 1733 | 1 |
| 11. | COTLONGUES | 1746 | 1 |
| 12. | COUDOUY | 1770-1788 | 5 |
| 13. | COULAU | 1731-1763 | 11 |
