Commune/Paroisse : Saint-Cergues [Haute-Savoie] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | COLLOMB | 1700-1916 | 6 | 12 |
| 2. | COLLON | 1666-1671 | 2 | - |
| 3. | COLLOUD | 1668 | - | 1 |
| 4. | COLOMB | 1705-1783 | 4 | 3 |
| 5. | COLON | 1675 | 1 | - |
| 6. | COMTAT | 1828 | 1 | - |
| 7. | COMTE | 1828-1912 | 17 | 18 |
| 8. | CONDEVAUD | 1853 | - | 1 |
| 9. | CONDEVAUX | 1662-1884 | - | 5 |
| 10. | CONSTANTIN | 1835 | 1 | - |
| 11. | CONVERS | 1686 | - | 1 |
| 12. | COPEL | 1869-1890 | 3 | 1 |
| 13. | COPPEL | 1841-1912 | 3 | 2 |
| 14. | CORNIER | 1727 | 1 | - |
| 15. | CORNUT | 1653-1816 | 2 | 3 |
| 16. | CORNUZ | 1679-1680 | - | 2 |
| 17. | CORT | 1784 | - | 1 |
| 18. | CORTAY | 1665-1679 | 2 | - |
| 19. | COSTAZ | 1854 | 1 | - |
| 20. | COSTIER | 1673 | 1 | - |
| 21. | CÔTE | 1846 | 1 | - |
| 22. | COTTET | 1683-1911 | 11 | 11 |
| 23. | COTTIER | 1868 | 1 | - |
| 24. | COTTIN | 1673-1688 | 1 | 1 |
| 25. | COUDURIER | 1906 | 1 | - |
| 26. | COURT | 1820 | 1 | - |
| 27. | COUSIN | 1660 | 1 | - |
| 28. | COUTTIER | 1864 | 1 | - |
| 29. | COUTTY | 1838 | 1 | - |
| 30. | COUTY | 1815-1907 | 2 | 3 |
| 31. | COUX | 1832 | 1 | - |