Hugh A. Holliday, noted aviation author, has researched and produced definitive lists of citations for H and A to the CWAC and the RCAF Womens Division. He may have done it for the WRCNS too.
In the CWAC list, 19 pages long with 4 to 5 entries per page, the members of the CWAC received the following awards - MBE (Member, Order of the British Empire), BEM (British Empire Medal, MID (Mention in Despatches), and Commendation for Brave Conduct.
I dont have a copy of the citations for H and A to the RCAF WD. You might try the Air Force Association in Ottawa. I remember reading an article by Hugh Halliday about H and A to the RCAF WD.
Cannot give you contact info for Hugh Halliday as he is not in the phone book. Perhaps Clive Law may be able to help.
Keep in mind, women were not in combat units in general, except for Nursing Sisters who were in medical units (Casualty Clearing Stations and Field Ambulances) located very close to the combat units, so they would not have been in a position to potentially commit an act of bravery worthy of a a bravery award.
You might also research "Canadian Military History" published by the Laurier Centre for Military Strategic and Disarmament Studies at Wilfred Laurier University. Contact the editor Mike Bechtold by email at <firstname.lastname@example.org> or 519-884-0710 extn 4594. They published a very interesting article about Canadian and British Nurses fighting the British Army in WW1 for award of the Military Cross.