Olive Tree Genealogy Answer:My great grand parents (John & Mary Anne White), and their family (6 children) arrived in Quebec City, in June 1842, from Sligo, Ireland. They were granted their Land in Albion, Ont., in Oct 1842.What is the most likely method of travel, and route, from Quebec to Montreal, and then on to York?
Jim - Most immigrants traveled up the St. Lawrence by boat to reach Montreal and then often continued on by boat to get to York (present day Toronto). From there they might have taken a stagecoach or wagon or walked to their inland destination.
Sometimes the original ship carried on from Quebec to Montreal but sometimes they had to transfer to another boat.
Sue Swiggum of The Ships List website has been busy for a few years transcribing the steamship passenger lists for boats carrying immigrants to Canada West (aka Upper Canada aka Ontario) from Quebec and Montreal. Ship arrivals in 1842 from May to July are found here. If you know the ship name you will find more details on Sue's page. There are some ships that have passenger names attached to letters or special notations made by the Captain.
The St. Lawrence steamship records start in 1819 and are found here
You can also search the Immigrant Agents' Records. There is much detail to be found here. See Filling in the Gaps for a comprehensive list of all available Immigrant Agent Records and other resources for your time period of interest.