| Surname | Country | Prov/State | Earliest | Latest | Contact Details |
|---|---|---|---|---|---|
| YARBOROUGH | ENG | LIN | 1400 | 1540 | Jean Ostrowski: 305-270 Simcoe Street, Victoria, BC V8V 1K7 |
| YARFIT | CAN | QC, ON, BC | 1740 | present | Marilyn Mowat |
| YARFIT | ENG | YKS | 1700 | - | Marilyn Mowat |
| YELLOWLEY | USA | PA | 1878 | 1901 | Garry/Dorothea Hammond |
| YEO | CAN | SK, ON | 1850 | 1930 | Wendy Leyland |
| YORK | CAN | MB | 1892? | - | Shirley Newell |
| YOUNG | ENG | KEN | 1876 | 1939 | Ann Young |
| YOUNGSON | SCT | ABD | 1797 | 1855 | Beth Bourke |