If you don't have an Archive.org account (free), this is a good reason to get one. As a lad in Timmins, ON, Austin Airways was a local fixture. I spent many flight hours going back and forth to Toronto on their HS748s and remember their DC-3s rattling overhead going to points far north. At the time this book was written (1974, revised and republished 1987-ish), their claim on being Canada's Oldest Airline was just about to end as they would be absorbed into Air Ontario, later becoming part of Air Canada Jazz.
One of the highlights is found in the appendices: the Pilot's Handbook, which has a lot of interesting operational insight into early bush flying over northern Canada.
Enjoy Larry Milberry's opus "Austin Airways" on Archive.org. here:
https://archive.org/embed/austinairwayscan0000milb
