Commune/Paroisse : Castelnau-Rivière-Basse [Hautes-Pyrénées] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | BACCARERE | 1744-1785 | 3 |
| 2. | BACQUIER | 1786 | 1 |
| 3. | BALETE | 1738 | 1 |
| 4. | BAQUIÉ | 1791 | 1 |
| 5. | BARADOS | 1778 | 1 |
| 6. | BARAU (BERAU/BARON) | 1791 | 1 |
| 7. | BARBE | 1737-1778 | 3 |
| 8. | BARON | 1768-1784 | 2 |
| 9. | BARREGAT | 1787 | 1 |
| 10. | BARRERE | 1741-1785 | 5 |
| 11. | BARZICAIRE | 1775 | 1 |
| 12. | BAUDE (DE) | 1743 | 1 |
| 13. | BAUDÉ | 1741-1775 | 3 |
| 14. | BAYONE | 1739 | 1 |
| 15. | BAZET | 1787 | 1 |
| 16. | BEAURENS | 1772 | 1 |
| 17. | BIERE | 1737-1774 | 5 |
| 18. | BILAS | 1771-1775 | 4 |
| 19. | BONNET | 1785 | 1 |
| 20. | BORDES | 1742-1789 | 5 |
| 21. | BRIE | 1770 | 1 |
| 22. | BROCA | 1787 | 1 |
| 23. | BROQUA | 1738-1778 | 7 |
| 24. | BROQUAIS | 1739 | 1 |
| 25. | BROQUÉS | 1776-1779 | 2 |
| 26. | BRUNET | 1789 | 1 |
| 27. | BRUZON | 1740-1792 | 6 |
| 28. | BUROSSE | 1776 | 1 |
