Bill Schultz (Facebook, "Victorian images" group, 29 December 2015): He is from London Canada West (CW) which becomes the Provence of Ontario after Confederation in 1867. He may be a member of the Queen's Rifles.
A copy of this photograph entitled "Allan Becher, Volunteers, Montreal, QC, 1865" is in the collection of the McCord Museum, Purchase from Associated Screen News Ltd, I-14533.1