Commune/Paroisse : RIOCAUD [Gironde] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | CABANE | 1805 | - | 1 |
| 2. | CABILLIE | 1939 | - | 1 |
| 3. | CALZETTA | 1935 | - | 1 |
| 4. | CAMBEROU | 1894 | - | 1 |
| 5. | CAMOU | 1869 | - | 1 |
| 6. | CAPELLE | 1813-1887 | 1 | 1 |
| 7. | CARBONI | 1940 | 1 | - |
| 8. | CARIS | 1868 | 1 | - |
| 9. | CARO | 1805 | 1 | - |
| 10. | CARRIERE | 1899 | 1 | - |
| 11. | CASTAGNET | 1844 | 1 | - |
| 12. | CASTANET | 1911 | 1 | - |
| 13. | CASTANT | 1846 | - | 1 |
| 14. | CAYRON | 1920 | - | 1 |
| 15. | CAYRONT | 1878 | - | 1 |
| 16. | CAYROUS | 1859 | 1 | - |
| 17. | CHABRETTE | 1920 | 1 | - |
| 18. | CHAGNEAU | 1832 | 1 | - |
| 19. | CHAGNON | 1820 | - | 1 |
| 20. | CHANIER | 1904 | 1 | - |
| 21. | CHARON | 1806 | 1 | - |
| 22. | CHARPENTIER | 1823-1847 | 1 | 1 |
| 23. | CHARROU | 1890-1902 | - | 2 |
| 24. | CHATEAU | 1844-1924 | 1 | 2 |
| 25. | CHAUPAS | 1804 | - | 1 |
| 26. | CHAUPIE | 1812 | - | 1 |
| 27. | CHAVAGNAC | 1939 | 1 | - |
| 28. | CHAVEROU | 1894 | 1 | - |
| 29. | CHOLLET | 1855-1872 | 1 | 1 |
| 30. | CHOLLU | 1851 | - | 1 |
| 31. | CLARY | 1819-1888 | 4 | 5 |
| 32. | COCULET | 1796-1849 | - | 4 |
| 33. | COMME | 1795 | - | 1 |
| 34. | CONDAMINAS | 1924 | 1 | - |
| 35. | CONORD | 1941 | 1 | - |
| 36. | CONSTANTIN | 1791-1852 | 2 | 1 |
| 37. | COQUET | 1927 | - | 1 |
| 38. | COSTE | 1844 | 1 | - |
| 39. | COUCHARD | 1830 | - | 1 |
| 40. | COUQUIAUD | 1792-1872 | 1 | 2 |
| 41. | COURBY | 1895 | 1 | - |
| 42. | COURGEAN | 1844 | 1 | - |
| 43. | COURREAU | 1888 | 1 | - |
| 44. | COUTELIER | 1801-1875 | 3 | 3 |
| 45. | COUTET | 1872 | - | 1 |
| 46. | COUYSSAC | 1912 | - | 1 |
| 47. | COUZENER | 1811 | 1 | - |
| 48. | CRABET | 1932 | 1 | - |
| 49. | CRIMOND | 1892 | 1 | - |
| 50. | CROULD | 1891 | 1 | - |
| 51. | CROUX | 1877 | - | 1 |
| 52. | CYRILLE | 1903 | - | 1 |