Commune/Paroisse : Castelsarrasin / Saint Sauveur [Tarn-et-Garonne] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | SEBASTELLE | 1705 | 1 | - |
| 2. | SECHEIRON | 1735-1743 | 1 | 2 |
| 3. | SECHEYROU | 1709 | 1 | - |
| 4. | SEGANIEZ | 1691 | - | 1 |
| 5. | SEGAUD | 1660-1786 | 8 | 7 |
| 6. | SÉGAUT | 1669-1720 | 5 | 7 |
| 7. | SEGUELA | 1769 | 1 | - |
| 8. | SÉGUI | 1705-1778 | 1 | 2 |
| 9. | SÉGUIN | 1695 | 1 | - |
| 10. | SEGURIE | 1662 | - | 1 |
| 11. | SÉGUY | 1758 | - | 1 |
| 12. | SÉGUY (DE) | 1784 | 1 | - |
| 13. | SEILHAC | 1766 | 1 | - |
| 14. | SÉNERGOUS | 1695-1781 | 7 | 7 |
| 15. | SÉNERGOUX | 1695-1764 | 3 | 3 |
| 16. | SENTEX | 1664 | - | 1 |
| 17. | SEQUESTRON | 1746 | - | 1 |
| 18. | SERES CLARION | 1711 | - | 1 |
| 19. | SERICHE | 1700 | 1 | - |
| 20. | SERNIN | 1662-1777 | 12 | 20 |
| 21. | SERRES | 1675-1785 | 3 | 6 |
| 22. | SERRES CLARION | 1665-1791 | 14 | 11 |
| 23. | SERROS CLARION | 1663 | 1 | - |
| 24. | SERRURIER DUBOIS | 1772 | 1 | - |
| 25. | SERVEN | 1669 | - | 1 |
| 26. | SESAL | 1704 | - | 1 |
