The 707 Etobicoke Royal Canadian Air Cadet Squadron formed in 1961, serving the Western Toronto area. In 2010 as part of a resource alignment change, 707 was moved to Stouffville Ontario to form the new Marion Orr CM Squadron.

Marion Alice Powell - Orr was the first woman in Canada to operate a flying club. The  airport she operated had one of the Elementary Flying Training Schools for the RCAF. 

Ms Orr was a pilot for the Air Transport Auxiliary of British Overseas Airways Ltd,  ferrying military aircraft for the RAF in England. She  every day, sometimes 8 flights a day, 4 or 5 different aircraft, connecting deliveries to military basis, factories, maintenance and repair depots, some times using Ansons or Fairchild 24s as "taxis" between flights.

With the end of WWII, there were a little over 100 women pilots in Canada at that time, so Marion went back to civilian instructing at Gillies Flying Service at Buttonville, north of Toronto, Ont. In 1946 and 1947 she instructed and flew charters at Barker Field and Toronto Island Airport on wheels and floats. During that time, she was also trained as an aero mechanic. Marion bought Aero Activities Ltd at Barker Field in 1950 and became the first woman in Canada to own and operating a flying club. 

Ms Orr was presented with an Amelia Earhart Medallion in 1976 by Dorothy Renwick, Chairman and Historian of the First Canadian Chapter, 99s, who said "This was not only for her outstanding achievements in civil aviation, but also for her significant contribution to Canada's war efforts".

In 1982, Marion was named a member of Canada's Aviation Hall of Fame; the third woman pilot to be honoured. She was inducted into the 99s Forest of Friendship in Atkinson, Kansas in 1989 (sponsored by Toronto Airways Ltd and East Canada Section, 99s). She received the Order of Canada in 1993 at Rideau Hall in Ottawa, Ontario.