Commune/Paroisse : Saint-Eustache [Haute-Savoie] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | RACT | 1859 | 1 |
| 2. | RAYMONDET | 1810 | 1 |
| 3. | RCHARDET | 1802 | 1 |
| 4. | REIGNIER | 1783-1915 | 17 |
| 5. | REINIER | 1838 | 1 |
| 6. | REVALCON | 1876 | 1 |
| 7. | REVILLARD | 1848 | 1 |
| 8. | RIBIOLET | 1807 | 1 |
| 9. | RICHAR | 1643 | 1 |
| 10. | RICHARD | 1708-1894 | 4 |
| 11. | RICHARD COMBAZ | 1804 | 1 |
| 12. | RICHARDET | 1766-1908 | 8 |
| 13. | RIVA | 1912 | 1 |
| 14. | ROMAND | 1815 | 1 |
| 15. | ROSE | 1818 | 1 |
| 16. | ROUX | 1700-1887 | 3 |
| 17. | ROZIER | 1895 | 1 |
| 18. | RUFFIER | 1865 | 1 |
| 19. | RUPH | 1906 | 1 |
| 20. | RUTH | 1675-1786 | 3 |