Commune/Paroisse : IZON [Gironde] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | GUADARRAMA | 1950 | - | 1 |
| 2. | GUADUEY | 1799 | 1 | - |
| 3. | GUAS | 1654 | - | 1 |
| 4. | GUELLARD | 1933-1946 | 1 | 1 |
| 5. | GUENON | 1928 | 1 | - |
| 6. | GUERIDON | 1839 | 1 | - |
| 7. | GUERIN | 1657-1811 | 3 | 5 |
| 8. | GUERLURI | 1715 | - | 1 |
| 9. | GUERRI | 1718 | 1 | - |
| 10. | GUERRY | 1637-1747 | 4 | 8 |
| 11. | GUEYDON | 1661 | - | 1 |
| 12. | GUEYNARD | 1817 | - | 1 |
| 13. | GUEYRARD | 1831-1946 | 3 | 2 |
| 14. | GUEYRAUD | 1831-1853 | 1 | 1 |
| 15. | GUEYRIN | 1686-1691 | 1 | 1 |
| 16. | GUICHARD | 1822-1872 | 4 | 1 |
| 17. | GUIGNAN | 1711-1772 | 1 | 1 |
| 18. | GUILHEBAUT | 1664-1726 | 2 | 1 |
| 19. | GUILHEM | 1694 | 1 | - |
| 20. | GUILHEMER | 1691 | - | 1 |
| 21. | GUILHEMON | 1728 | 1 | - |
| 22. | GUILHEMOT | 1663 | - | 1 |
| 23. | GUILHEN | 1711 | 2 | - |
| 24. | GUILHON | 1770-1780 | 1 | 1 |
| 25. | GUILHOT | 1708-1798 | 2 | - |
| 26. | GUILLAUME | 1767 | - | 1 |
| 27. | GUILLBAS | 1829 | - | 1 |
| 28. | GUILLEBAU | 1712 | 1 | - |
| 29. | GUILLEBAUT | 1659-1774 | 5 | 5 |
| 30. | GUILLEM | 1688-1764 | 3 | 5 |
| 31. | GUILLEMANCON | 1738 | 1 | - |
| 32. | GUILLEMANSON | 1746 | 1 | - |
| 33. | GUILLEMON | 1687-1731 | 2 | 1 |
| 34. | GUILLEMONS | 1679 | - | 1 |
| 35. | GUILLET | 1821 | - | 1 |
| 36. | GUILLIN | 1892-1923 | 1 | 1 |
| 37. | GUILLON | 1866-1881 | - | 2 |
| 38. | GUILLOT | 1654-1893 | 3 | 4 |
| 39. | GUILMANSON | 1777 | - | 2 |
| 40. | GUIMBERTEAU | 1815-1835 | 1 | 1 |
| 41. | GUIMEZ | 1820 | - | 1 |
| 42. | GUIMON | 1780-1809 | 2 | - |
| 43. | GUINEMER | 1669 | 1 | - |
| 44. | GUINODIE | 1835 | 2 | - |
| 45. | GUION | 1702 | - | 1 |
| 46. | GUIONAU | 1691 | 1 | - |
| 47. | GUIONEAU | 1691 | 1 | - |
| 48. | GUIONNEAU | 1699 | 1 | - |
| 49. | GUIRAUD | 1852 | 1 | - |
| 50. | GUIREAU | 1843 | 1 | - |
| 51. | GUITARD | 1766 | 1 | - |
| 52. | GUITTONNE | 1664 | - | 1 |
| 53. | GUSKI | 1919 | 1 | - |
| 54. | GUYON | 1679 | 1 | - |