Commune/Paroisse : On [Luxembourg]
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | WAERTS | 1924 | 1 |
| 2. | WAGNER | 1958 | 1 |
| 3. | WALHAIN | 1934-1961 | 3 |
| 4. | WALHOUSEN | 1954 | 1 |
| 5. | WARZÉE | 1956 | 1 |
| 6. | WATELET | 1826-1969 | 11 |
| 7. | WATHELET | 1878-1936 | 2 |
| 8. | WATLET | 1872-1968 | 12 |
| 9. | WAUTHIER | 1876-1969 | 8 |
| 10. | WAUTRICHE | 1962 | 1 |
| 11. | WAUVERMANS | 1933 | 1 |
| 12. | WEBER | 1930 | 1 |
| 13. | WEIBEL | 1953 | 1 |
| 14. | WEIS | 1970 | 1 |
| 15. | WÉRON | 1869 | 1 |
| 16. | WIARD | 1940 | 1 |
| 17. | WIELEMANS | 1936 | 1 |
| 18. | WIGNY | 1967 | 1 |
| 19. | WILKIN | 1963 | 1 |
| 20. | WILLIAM | 1965 | 1 |
| 21. | WILLIOT | 1924 | 1 |
| 22. | WILMART | 1886 | 1 |
| 23. | WUILLET | 1925 | 1 |
| 24. | WUILLOT | 1799-1866 | 5 |
| 25. | WUILOT | 1852-1965 | 11 |