In 1979 W.Brian Costello wrote "A Nursery of the Air Force", basically a history of the contributions made by the men of the tiny village of Carleton Place,Ontario to the air war 1914-18.
Obviously
Roy Brown features prominently in the book, but chapters are devoted to other aces such as
Lloyd Breadner, Murray Galbraith, and
Stearne Edwards, although the author seems to have missed Jack Drummond. It is amazing that this village produced five aces!
Perhaps you could find a copy at Abebooks.com