Leacock gave many recitals at Mount Royal College and for the Aeolian Chamber Music Series and performed with the Calgary Symphony Orchestra. He retired from performance in 1974. His compositions include the beginners' pieces Sea Horses (Thompson 1954) and Tic-Toccatina (Harris 1959), Partita for Solo Violin, an orchestral tone poem The Lonely Lake (1956), works for violin and piano, and many songs. Several of his piano pieces have been used as competition test pieces.
The Leacock Theatre of Mount Royal College was dedicated in his honour 18 Nov 1972. In 1973, for service to music, he was presented with an Alberta Achievement Award by the provincial government and in 1985 he was named a Member of the Order of Canada. He was a skilled photographer and avid stamp collector. Leacock's papers and photographs are held by the Whyte Museum of the Canadian Rockies. Mount Royal College offers the Leonard Leacock Scholarship.
Author Betty Nygaard King
Potter, Carl. 'Musician-mountaineer,' CanComp, 48, Mar 1970
Roberts, Karlyn. 'Leacock at 80: a career in retrospect,' Prelude, vol 6, 15 Jan 1984
'Calgary composer Doc Leacock dies,' Calgary Herald, 5 Dec 1992