Born 1909, in Montreal. Activist in the Canadian and international workers’ movement.
Kashtan is the son of a worker. He has participated in the Canadian communist movement since 1927. He held variousposts in the organizations of the Communist Party of Canada(CPC) in the provinces of Quebec and Ontario from 1938 to 1946. Kashtan was secretary of the national committee of theCPC for work in the trade unions and for organizational questions from 1946 to 1964. He has been general secretary of the CPC since January 1965.