Commune/Paroisse : Saint-Léon-sur-l'Isle [Dordogne] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | FAGEOT (?) | 1627 | 1 | - |
| 2. | FANARCILLAS | 1744 | - | 1 |
| 3. | FARGE | 1727 | 1 | - |
| 4. | FARGEOT | 1685-1696 | 1 | 1 |
| 5. | FARGES | 1871 | 1 | - |
| 6. | FARGOT | 1685 | 1 | - |
| 7. | FARNIERE | 1711 | 1 | - |
| 8. | FAUGERON | 1625 | 1 | - |
| 9. | FAURE | 1691-1858 | 8 | 5 |
| 10. | FAUSTIN | 1869 | - | 1 |
| 11. | FAVARCQ | 1874 | - | 1 |
| 12. | FEYTOUT | 1845-1849 | - | 2 |
| 13. | FILHOL | 1692 | 1 | - |
| 14. | FOMBELESSE | 1818 | 1 | - |
| 15. | FOMBELISSE | 1667-1743 | - | 2 |
| 16. | FONBELISSE | 1709-1852 | 8 | 2 |
| 17. | FONBELISSE (de) | 1683 | - | 1 |
| 18. | FONMARTI | 1804 | - | 1 |
| 19. | FONMARTY | 1734-1888 | 2 | - |
| 20. | FONTAS | 1657-1863 | 6 | 3 |
| 21. | FONTAS (de) | 1625-1762 | 2 | 6 |
| 22. | FONTAS de | 1753-1788 | 1 | 1 |
| 23. | FONTMARTY | 1856-1866 | 2 | - |
| 24. | FOUGERON | 1791 | 2 | - |
| 25. | FOULAR | 1813 | - | 1 |
| 26. | FOURNIER | 1716-1900 | 1 | 2 |
| 27. | FRAISSE | 1873-1902 | 2 | 1 |
| 28. | FRANC | 1626-1643 | - | 5 |
| 29. | FRANCISQUE | 1788 | - | 1 |
| 30. | FRANT | 1659 | 1 | - |
| 31. | FREIX | 1898 | 1 | - |
| 32. | FRENEYS | 1717 | 1 | - |
| 33. | FRENY | 1848 | - | 1 |
| 34. | FREY | 1898 | 1 | - |
| 35. | FRONT | 1864 | 1 | - |
| 36. | FRUCHE | 1650 | 1 | - |
| 37. | FRUCHOU | 1668-1776 | 1 | 2 |
| 38. | FRUCHOU (?) | 1641 | - | 1 |