Commune/Paroisse : CENON [GIRONDE] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | OATLEY | 1879-1905 | 2 | - |
| 2. | OCTEAU | 1909 | - | 1 |
| 3. | ODEAU | 1839 | - | 1 |
| 4. | OLHARRAPE | 1906 | - | 1 |
| 5. | OLIVA | 1906 | - | 1 |
| 6. | OLIVE | 1919 | 1 | - |
| 7. | OLIVET | 1798-1811 | 3 | - |
| 8. | OLIVIER | 1849-1912 | - | 2 |
| 9. | OLSSEM | 1856 | - | 1 |
| 10. | OLSSEN | 1864 | 1 | - |
| 11. | OMIECENSKI | 1897 | 1 | - |
| 12. | ORIGNAC | 1906 | 1 | - |
| 13. | ORNON | 1854 | - | 1 |
| 14. | OSSAR | 1901 | - | 1 |
| 15. | OSSARD | 1902 | - | 1 |
| 16. | OSSEN | 1841 | - | 1 |
| 17. | OUSSET | 1913 | - | 1 |