Lester Bowles Pearson was a Canadian politician and statesman and an ardent leader in the world peace movement.  From 1928 to 1935, Pearson served in the Canadian Foreign Ministry and represented the dominion in a number of disarmament conferences and the League of Nations.  After working in the High Commissioner’s Office for Canada in London from 1935 to 1941, Pearson moved to Washington, DC where he was assigned to the Canadian Legation from 1942 to 1944.  He became the Canadian ambassador to the U.S. in 1944 and represented Canada at the Dumbarton Oaks Conference in 1944 and the San Francisco Conference in 1945.  From 1946 to 1956, Pearson led the Canadian delegation at the United Nations, serving as the Chairman of the General Assembly from 1952 to 1953.  He entered politics as a Liberal and represented Algoma East as a Member of Parliament from 1948 to 1957.  Pearson was very active in UN peace-keeping operations: he negotiated the cease-fire during the Korean War (1953) and created the UN Emergency Force after the Suez Crisis in 1956.  For his peace-keeping efforts, Pearson received the Nobel Peace Prize in 1957.  He won the general election in Canada in 1963 and served as prime minister until 1968.  He died in Ottawa, Ontario on December 27, 1972.