Commune/Paroisse : LANSAC [Gironde] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | RABAT | 1919 | - | 1 |
| 2. | RABAUTET | 1843 | 1 | - |
| 3. | RABOUTET | 1733-1921 | 5 | 5 |
| 4. | RAGONNEAU | 1810 | 1 | - |
| 5. | RAMBEAU | 1878 | 1 | - |
| 6. | RANCHOU | 1874 | 1 | - |
| 7. | RASPE | 1935 | 1 | - |
| 8. | RATOUIN | 1728 | - | 1 |
| 9. | RAYMOND | 1925 | 1 | 1 |
| 10. | RECAPPE | 1910 | - | 1 |
| 11. | REGNIER | 1871 | - | 1 |
| 12. | REINAUD | 1851-1920 | 2 | 2 |
| 13. | RENAT | 1907 | - | 1 |
| 14. | RENAUD | 1811-1939 | 6 | 16 |
| 15. | RENOU | 1875 | 1 | - |
| 16. | REUNAUD | 1802 | 1 | - |
| 17. | REYNAUD | 1768-1888 | 1 | 2 |
| 18. | REYNEAU | 1775 | - | 1 |
| 19. | REYRAUD | 1882 | 1 | - |
| 20. | RIAUX | 1810 | - | 1 |
| 21. | RIBOT | 1757 | 1 | - |
| 22. | RICHARD | 1726-1919 | 5 | 5 |
| 23. | RICHET | 1751 | - | 1 |
| 24. | RIGOLE | 1935 | - | 1 |
| 25. | RIGOLLE | 1864-1907 | 2 | - |
| 26. | RIMES DE | 1694 | 1 | - |
| 27. | RIORTIER | 1702 | 1 | - |
| 28. | RIVOIRE | 1864 | 1 | - |
| 29. | ROBERT | 1702-1930 | 11 | 6 |
| 30. | ROBIN | 1728-1913 | 10 | 4 |
| 31. | ROBINEAU | 1804 | - | 1 |
| 32. | ROBINET | 1740-1768 | 2 | - |
| 33. | ROBINIE | 1804 | - | 1 |
| 34. | ROCHERON | 1729 | 1 | - |
| 35. | RODE | 1868 | 1 | - |
| 36. | ROI | 1824 | 1 | - |
| 37. | RONDEAU | 1728-1816 | 3 | 1 |
| 38. | ROSTEGUI DE | 1719 | - | 1 |
| 39. | ROTURIER | 1791-1840 | 2 | - |
| 40. | ROUBIGNAC | 1808 | 1 | - |
| 41. | ROUILLARD | 1913-1922 | 2 | - |
| 42. | ROUMAS | 1860-1921 | 3 | 5 |
| 43. | ROUSSEAU | 1694-1903 | 5 | 10 |
| 44. | ROUTURIER | 1856-1886 | - | 4 |
| 45. | ROUX | 1756-1901 | 2 | 1 |
| 46. | ROUY | 1771 | 1 | - |
| 47. | ROUYSSES | 1900 | - | 1 |
| 48. | ROY | 1733-1913 | 9 | 20 |
| 49. | RULLEAU | 1853-1911 | 3 | 2 |