Commune/Paroisse : Baisy-Thy [Brabant wallon] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | TABURIAUX, | 1809-1859 | 16 |
| 2. | TAQUIN, | 1820-1857 | 6 |
| 3. | TAVIAU, | 1814 | 1 |
| 4. | TAVIAUX, | 1832 | 1 |
| 5. | THEYS, | 1775-1818 | 3 |
| 6. | THIRY, | 1813 | 1 |
| 7. | THOMAS, | 1809-1849 | 12 |
| 8. | THYS, | 1841 | 1 |
| 9. | TICHOUT, | 1819 | 1 |
| 10. | TICHOUX, | 1810-1855 | 14 |
| 11. | TONNON, | 1856 | 1 |
| 12. | TONON, | 1823-1838 | 2 |
| 13. | TOURNAY, | 1803-1859 | 20 |
| 14. | TOURNAÿ, | 1848 | 1 |
| 15. | TOUSSAINT, | 1838 | 1 |
| 16. | TREZENIES, | 1843 | 1 |
| 17. | TRON, | 1803-1861 | 13 |
| 18. | TUBIERMONT, | 1849 | 1 |
