Commune/Paroisse : LANSAC [Gironde] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | GABARD | 1694-1774 | 3 | 8 |
| 2. | GABILLARD | 1759-1853 | - | 4 |
| 3. | GABORIAS | 1727 | - | 1 |
| 4. | GABORIAUD | 1870-1919 | 1 | 1 |
| 5. | GAGNEROT | 1730-1829 | 2 | 3 |
| 6. | GAIGNAN | 1752 | - | 1 |
| 7. | GAIGNE | 1844 | 1 | - |
| 8. | GAIGNEROT | 1838-1936 | 3 | 4 |
| 9. | GAILLARD | 1857 | 1 | - |
| 10. | GAREAU | 1903 | 1 | - |
| 11. | GARREAU | 1741 | 1 | - |
| 12. | GAUDET | 1923 | - | 1 |
| 13. | GAUDINAUD | 1882-1888 | 1 | 1 |
| 14. | GAUNIS | 1936 | 1 | - |
| 15. | GAUTRAT | 1926 | 1 | - |
| 16. | GAY | 1762-1781 | 1 | 2 |
| 17. | GAYAUD | 1740 | - | 1 |
| 18. | GAYEAUD | 1854 | 1 | - |
| 19. | GAYET | 1727-1844 | 1 | 3 |
| 20. | GENDRE | 1848 | 1 | - |
| 21. | GEORGES | 1815 | 1 | - |
| 22. | GERARD | 1940 | 1 | - |
| 23. | GERINAL | 1897 | 1 | - |
| 24. | GIRARD | 1698-1734 | 1 | 1 |
| 25. | GIRAUD | 1824 | 1 | - |
| 26. | GIRAUDEAU | 1819 | 1 | - |
| 27. | GIRON | 1770 | 1 | - |
| 28. | GLENISSON | 1781 | 1 | - |
| 29. | GLORIAS | 1844 | 1 | - |
| 30. | GODET | 1897 | - | 1 |
| 31. | GOLPHE | 1819-1846 | 1 | 1 |
| 32. | GOMBAU | 1791 | 1 | - |
| 33. | GOMBAUD | 1737-1850 | - | 5 |
| 34. | GOMBEAU | 1783-1791 | - | 2 |
| 35. | GOMBEAUD | 1760-1866 | 4 | - |
| 36. | GONIE | 1902 | - | 1 |
| 37. | GONIN | 1738 | 1 | - |
| 38. | GONTIER | 1900 | 1 | - |
| 39. | GONTRAT | 1901 | 1 | - |
| 40. | GORFE | 1755 | 1 | - |
| 41. | GORIBON | 1907 | - | 1 |
| 42. | GORPHE | 1860 | 1 | - |
| 43. | GORRIBON | 1752-1771 | 2 | - |
| 44. | GORRY | 1731 | - | 1 |
| 45. | GOUGEON | 1780-1820 | 2 | 2 |
| 46. | GOUILLEAU | 1878 | 1 | - |
| 47. | GOUJON | 1702-1751 | 1 | 1 |
| 48. | GOULLE | 1906 | 1 | - |
| 49. | GOURRIBON | 1764-1765 | 2 | - |
| 50. | GOY | 1728-1763 | 1 | 1 |
| 51. | GOYA | 1772-1776 | 1 | 2 |
| 52. | GOYAUD | 1870 | 1 | - |
| 53. | GRACIA | 1942 | 1 | - |
| 54. | GRANDILLON | 1844 | 1 | - |
| 55. | GRENICO | 1809 | 1 | - |
| 56. | GRENIER | 1702-1916 | 17 | 14 |
| 57. | GRILLET | 1731-1859 | 6 | 8 |
| 58. | GRIVE | 1740 | - | 1 |
| 59. | GUARD | 1870 | - | 1 |
| 60. | GUERIN | 1894-1936 | 2 | 1 |
| 61. | GUIARD | 1726-1826 | - | 7 |
| 62. | GUIBERT | 1888-1907 | 1 | 1 |
| 63. | GUICHARD | 1774 | 1 | - |
| 64. | GUIET | 1815 | - | 2 |
| 65. | GUILBAUD | 1789 | 1 | - |
| 66. | GUILBEAU | 1760-1828 | 3 | - |
| 67. | GUILHEM | 1806-1825 | 1 | 1 |
| 68. | GUILLAIN | 1782 | 1 | - |
| 69. | GUILLAUD | 1852 | - | 1 |
| 70. | GUILLAUME | 1912 | - | 1 |
| 71. | GUILLEBAUD | 1728-1743 | 2 | 1 |
| 72. | GUILLEBAUT | 1735 | - | 1 |
| 73. | GUILLEBEAU | 1851-1908 | 1 | 1 |
| 74. | GUILLEM | 1744 | 1 | - |
| 75. | GUILLON | 1734-1763 | - | 5 |
| 76. | GUILLORIT | 1731 | - | 1 |
| 77. | GUIRAUD | 1814-1858 | 3 | 3 |
| 78. | GUIREAUD | 1808 | - | 1 |
| 79. | GUYARD | 1848 | 1 | - |