J^ly CT/Ot> fees were modified to $2 and then to a penny a pound. The brothers were known to use bathroom scales to measure customer's weight before taking him or her up for a ride. Besides flying passengers, the company operated side businesses, which included crop and forest spraying, advertising and bannertowing, and aerial photography. In 1936, the company moved to Toronto and within a year, established itself as the country's largest training school for pilots. Arthur Leavens was killed in a plane crash with two of his passengers while on a regular ride near St. Marys in Western Ontario in . 1937, Clare and Walter Leavens continued the business and trained the airforce navigators at London, Ont. During the war, the Leavens took an active role in the training of instructor pilots for the British Commonwealth Air Training Plan, Between 1940 to 1944, they also took on the non-military operations of No. 4 Air Observation School in London, Ont. Clare and Walter continued the flying business until 1954 when Walter half-retired from the business. Industrial growth in that part of Toronto gradually closed the company's flying field and Clare switched to chartered flights and aircraft parts sales. Walter died in 1969 and Clare continued the business with his sons until his death in 1972. Today, the Leavens Aviation Inc. in Mississauga is in the business of manufacturing and sales and services of aircraft parts. ' «