[1] He earned his MA from Queen's University receiving honours in Latin, French, English, History, and Political and Economic Science.
[1][2] At the instigation of Oscar D. Skelton, Clark wrote a well-received memorandum on monetary policy for the 1932 British Empire Economic Conference in Ottawa.
[2] As deputy minister, Clark helped to establish the Bank of Canada in 1934, and he chaired the World War II Economic Advisory Committee.
[3] He supported a series of mortgage-assistance measures, and he helped convince Mackenzie King to adopt the 1944 Family Allowance Act.
[5][6] Queen's University has established a public policy foundation which jointly honours Clifford Clark and Oscar D.