Commune/Paroisse : IZON [Gironde] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | GRANAY | 1711 | - | 1 |
| 2. | GRANEY | 1660-1690 | 3 | 2 |
| 3. | GRANLEAU | 1846 | 1 | - |
| 4. | GRANOULIAC | 1925-1945 | 2 | 1 |
| 5. | GRASSET | 1888 | 1 | - |
| 6. | GRASSINI | 1941 | - | 1 |
| 7. | GRAULEAU | 1884 | 1 | - |
| 8. | GRAULIER | 1741 | 1 | - |
| 9. | GREGOIRE | 1750 | - | 1 |
| 10. | GRELLOT | 1799-1810 | 2 | - |
| 11. | GRELOT | 1798-1879 | 4 | 7 |
| 12. | GRENIER | 1700-1911 | 1 | 1 |
| 13. | GRES | 1826-1853 | 1 | 2 |
| 14. | GRETEAU | 1888 | - | 1 |
| 15. | GROLEAU | 1840 | - | 1 |
| 16. | GROS | 1657-1942 | - | 2 |
| 17. | GRUGIER | 1896 | 1 | - |
| 18. | GRUINEZ | 1830 | - | 1 |