Commune/Paroisse : Saint Omer
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | OBERT | 1700-1791 | 7 | 6 |
| 2. | OBIN | 1704-1758 | 5 | - |
| 3. | OBRY | 1707-1748 | 2 | - |
| 4. | OCTO | 1740 | 1 | - |
| 5. | ODE de PRADELLES | 1790 | - | 1 |
| 6. | ODET | 1704-1744 | 3 | 1 |
| 7. | ODIBERT | 1705 | 1 | - |
| 8. | ODOTE | 1731 | 1 | - |
| 9. | OGANT | 1733 | 1 | - |
| 10. | OGIER | 1700-1790 | 16 | 6 |
| 11. | OLDENAL | 1723 | 1 | - |
| 12. | OLIVIER | 1703-1778 | 11 | - |
| 13. | OLLIER | 1750 | 1 | - |
| 14. | OMBRAY | 1714 | 1 | - |
| 15. | ONDERMARCH | 1741 | 1 | - |
| 16. | ONDERMERCH | 1706 | 2 | - |
| 17. | ORNICQ | 1713 | 1 | - |
| 18. | OSTEN | 1731 | 1 | - |
| 19. | OSTEON | 1705 | 1 | - |
| 20. | OUBRY | 1746 | 2 | - |
| 21. | OUDART | 1707 | - | 1 |
| 22. | OUIN | 1731 | - | 1 |
| 23. | OULTRE | 1703 | 2 | - |
| 24. | OUTERS | 1728-1756 | 3 | - |
| 25. | OUTHEER | 1680 | - | 1 |
| 26. | OUTHERS | 1737 | 1 | - |
| 27. | OUTREBON | 1707-1730 | 2 | - |
| 28. | OUVERS | 1761 | 1 | - |
| 29. | OUVERTUS | 1724 | 1 | - |
| 30. | OUVRAY | 1724 | 1 | - |
| 31. | OUY | 1732 | 1 | - |
| 32. | OYER | 1732 | 1 | - |
| 33. | OYEZ | 1754 | 1 | - |