| Surname | Country | Prov/State | Earliest | Latest | Contact Details |
|---|
| ILLINGWORTH | ENG | YKS | ~1878 | - | Gael Huntley
|
| IRISH | ENG | DBY | 1857 | 1930+ | Helen Simpson
|
| IRVIN | SCT | SHI | 1720 | 1780 | Heather Shave
|
| ISHERWOOD | CAN | AB, BC, ON | 1865 | Present | Doreen Isherwood: 602-103 Gorge Road East, Victoria BC V9A 6Z2 |
| ISHERWOOD | ENG | LAN | 1837 | 1865 | Doreen Isherwood: 602-103 Gorge Road East, Victoria BC V9A 6Z2 |
| ISING | NL | - | 1780 | 1873 | Evert Moes
|
| ISING | GER | - | 1780 | 1873 | Evert Moes
|
| IWARBY | ENG | BKM | 1275 | 1450 | Jean Ostrowski: 305-270 Simcoe Street, Victoria, BC V8V 1K7 |
| IWERBY | ENG | LIN | 1425 | 1450 | Jean Ostrowski: 305-270 Simcoe Street, Victoria, BC V8V 1K7 |
