Here is a link to the Fort Garry Horse who used the firefly. Their archives should be able to supply you everything you want.
http://www.fortgarryhorse.ca/j1526/i...d=68&Itemid=74
Les Fusiliers de Sherbrooke also used the Sherman:
http://en.wikipedia.org/wiki/Les_Fus..._de_Sherbrooke
As did the Lord Strathcona Horse (It is still a regular unit with the
Canadian Army)
http://www.canadiansoldiers.com/vehi...attletanks.htm
There are a few Sherman's around the countryside that are used as war memorials but I am not skilled at telling the difference between the different marks. Good luck.
Ewen