Commune/Paroisse : Castelsarrasin [Tarn-et-Garonne] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | GASC | 1803-1903 | 33 | 22 |
| 2. | GASCON | 1851 | 1 | - |
| 3. | GASCOU | 1840-1903 | 1 | 4 |
| 4. | GASIOS | 1820 | 1 | - |
| 5. | GASPARD | 1846 | - | 1 |
| 6. | GASSIE | 1809 | - | 1 |
| 7. | GASSIO | 1820 | - | 1 |
| 8. | GASSION | 1825 | 1 | - |
| 9. | GASSIOS | 1813-1865 | 2 | 3 |
| 10. | GASTON | 1829-1906 | 1 | 1 |
