My research on Harry Wood (previous message) led me to digging into the first few Canadian aces.From a quick study of
ATT, it appears that the following Canadians became aces during 1916:
R.H.Mulock (5th victory 21 May 1916),lst Canadian and 1st RNAS ace;H.C.Evans (fifth victory 9 Aug 1916);A.G.Knight (fifth victory 15 Sept 1916);A.D.Bell-Irving (fifth victory 30 Sept 1916); H.A.Wood (fifth victory 16 Nov 1916); and C.S.Duffus (fifth victory 11 Dec 1916). There may be others I have missed.
Note that Evans and Knight are both listed with the English aces on this website,but both were Canadians, albiet English-born. Evans came to Canada as a youngster, ranched in the west, served in the Canadian Artillery in the Boer War, and the Canadian army in WW1 before joining the RFC. He was a senior citizen of 37 when he became an ace.
Knight came to Canada as a child, was educated at Upper Canada College and the University of Toronto and was one of a batch of 20 young Canadians, all graduates of McGill or Toronto, and from upper class backgrounds who enrolled in the RFC in Toronto. I think ATT states that Knight returned to England to join the RFC, which is not correct.He learned to fly before he went overseas, and was certainly considered to be Canadian. He didn't even have an English accent, and Hawker thought of him as a "colonial", just like McKay,Wood, and the other Canucks in the unit.! By the way, much of my info came from Stewart Taylor.