Arthur Reginald Marsden Lower (born August 12, 1889, Barrie, Ontario, Canada—died January 7, 1988, Kingston, Ontario) was a Canadian historian known for his promotion of Canadian national identity.
Lower was educated at the University of Toronto and at Harvard University, where he earned a Ph.D. in 1929. He served as professor at United College, University of Manitoba (1929–46), and as Douglas Professor of Canadian History at Queen’s University, Kingston (1947–59). Marsden chronicled the economic history of the Canadian timber industry in such books as The Trade in Square Timber (1932), Settlement and the Forest Frontier in Eastern Canada (1936), and The North American Assault on the Canadian Forest (1938) and later, in Colony to Nation: A History of Canada (1946), attempted to establish a nationalistic pride to unite French and English Canadians. Lower’s pioneering historical writings, which were peppered with lively social commentary, witticisms, and anecdotes, aroused controversy yet were widely read because of their fierce nationalistic persuasion. Some of his other important works include Evolving Canadian Federalism (1958), Canadians in the Making (1958), an autobiography, My First Seventy-five Years (1967), and his last work, A Pattern for History (1978). Lower was twice recipient of the Governor General’s Medal (1947 and 1955), was winner of the Tyrrell Medal of the Royal Society of Canada (1947), and in 1968 was made a Companion of the Order of Canada.