Commune/Paroisse : Thonon-les-Bains [Haute-Savoie] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | BRAASCH | 1872 | - | 1 |
| 2. | BRACHET | 1631-1819 | - | 2 |
| 3. | BRACONAY | 1761 | - | 1 |
| 4. | BRACONNAY | 1872 | - | 1 |
| 5. | BRALLIARD | 1644 | - | 1 |
| 6. | BRANCAZ | 1682 | 1 | - |
| 7. | BRASCH | 1874 | 1 | - |
| 8. | BRAUTHIER | 1833 | 1 | - |
| 9. | BRAZIER | 1885 | - | 1 |
| 10. | BREGAND | 1827-1858 | 1 | 2 |
| 11. | BREISSAND | 1827-1830 | - | 2 |
| 12. | BRELAT | 1702-1884 | 12 | 10 |
| 13. | BRELAZ | 1710-1848 | 2 | 2 |
| 14. | BRESETA | 1649 | 1 | - |
| 15. | BRESSAND | 1877 | - | 2 |
| 16. | BRET DIT MARGERET | 1687 | 1 | - |
| 17. | BRETON | 1839 | 1 | - |
| 18. | BREYTON | 1877 | - | 2 |
| 19. | BRIANFAT | 1612 | - | 1 |
| 20. | BRIFFOD | 1841 | - | 1 |
| 21. | BRIGAUD | 1783 | 1 | - |
| 22. | BRISGAND | 1875 | 2 | - |
| 23. | BRISSET | 1681 | - | 1 |
| 24. | BROCY | 1666 | - | 1 |
| 25. | BRON | 1618-1894 | 17 | 26 |
| 26. | BRONNAZ | 1817 | - | 1 |
| 27. | BRONNEZ | 1647 | - | 1 |
| 28. | BRONZ | 1649 | - | 1 |
| 29. | BROSSE | 1890 | 1 | - |
| 30. | BROTHIER | 1860-1899 | - | 2 |
| 31. | BROTI DE | 1632 | 1 | - |
| 32. | BROTIER | 1627-1631 | - | 3 |
| 33. | BROTIER DE* | 1618 | - | 1 |
| 34. | BROTTI DE | 1735 | - | 1 |
| 35. | BROTTIER | 1784-1811 | 1 | 1 |
| 36. | BROTTY | 1695-1696 | - | 2 |
| 37. | BROTTY DE | 1641-1723 | 1 | 3 |
| 38. | BROTY | 1640-1784 | 4 | 1 |
| 39. | BROTY DIT PARIAT | 1648 | - | 1 |
| 40. | BROTYS | 1706 | - | 1 |
| 41. | BROUILLA | 1640 | 1 | - |
| 42. | BROUZE | 1770-1863 | 2 | 1 |
| 43. | BROUZET | 1812 | 1 | - |
| 44. | BRUCHON | 1723-1887 | 4 | 8 |
| 45. | BRUGNIER | 1766 | - | 1 |
| 46. | BRUN | 1614-1890 | 4 | 3 |
| 47. | BRUN-GAILLAND | 1862 | 1 | - |
| 48. | BRUNET | 1713-1896 | 2 | - |
| 49. | BRUNIER | 1672-1836 | 1 | 1 |
| 50. | BRUNNE | 1620 | - | 1 |
| 51. | BRUNOD | 1840 | - | 1 |
| 52. | BRUNOZ | 1665-1682 | 1 | 1 |
| 53. | BRUNSCHVIG | 1873-1874 | 2 | - |
| 54. | BRUXEL | 1676 | 1 | - |
| 55. | BRUXELLE | 1668 | 1 | - |