This article
https://www.keymilitary.com/article/atlantic-squadron (behind a paywall, it seems) describes No.10 Squadron RCAF or the ‘The North Atlantic Squadron’ and its aircraft.
Some more info on Gander Lake's B-24 here:
http://www.ganderairporthistoricalso....lakes.B24.htm; with a link to footage:
http://www.ganderairporthistoricalso...der%20Lake.mp4