Pardon a quibble - you may wish to consult
http://www.airforce.ca/citations/wwi/index.htm for citations to awards to the Canadians listed. Although the data base found there needs some up-dating, I would hesitate to say that A.G. Knight "trained in Canada" before going overseas. He appears to have been among a number of people who applied to the Curtiss School (then operating at Toronto) and may have received some instruction, but did not graduate (certainly had no ACA Certificate) as the school had a habit of closing for the winter months - the managers wanted to move it to Bermuda if somebody else would pay for the move. George Fuller wrote a long article about the school (and unhappily, I cannot lay hands on it right now) which appeared (I think) in the Journal of the Canadian Aviation Historical Society (or was it the AAHS Journal - memory is the second thing to go when you get old). I hope you are in possession of Elizabeth O'Kiely's GENTLEMAN AIR ACE: THE DUNCAN BELL-IRVING STORY (published 1992 by Harbour Publications, Madeira Park, British Columbia - if the company is out of business, try Canav Books, 51 Balsam Avenue, Toronto, M4E 3B6).