Naissances / baptêmes
Commune/Paroisse : Decazeville 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | GUIBBERT | 1880 | 1 |
| 2. | GUIBBONS | 1840 | 1 |
| 3. | GUIBERT | 1844-1899 | 48 |
| 4. | GUICHE | 1858-1895 | 8 |
| 5. | GUILLADES | 1848 | 1 |
| 6. | GUILLAUMY | 1865 | 1 |
| 7. | GUILLEMY | 1864 | 1 |
| 8. | GUILLERY | 1852 | 1 |
| 9. | GUILLION | 1870 | 1 |
| 10. | GUILLON | 1874 | 1 |
| 11. | GUIRAL | 1847-1885 | 9 |
| 12. | GUIRAL / VIDAL | 1843 | 1 |
| 13. | GUIRAUDIE | 1883-1898 | 7 |
| 14. | GUITARD | 1837-1886 | 7 |
| 15. | GUIVERT | 1852 | 1 |
| 16. | GUIZARD | 1891 | 1 |
| 17. | GUIZOT | 1849-1889 | 10 |