In 1926, Stettinius began working at
General Motors as a stock clerk, but his connections made for rapid advancement. He became assistant to
John Lee Pratt, a friend of the family, and by 1931 he had become vice president of public and industrial relations. At General Motors, he worked to develop unemployment relief programs and came into contact with New York Governor
Franklin Roosevelt. In the 1930s, Stettinius's work in the private sector alternated with public service. He served on the Industrial Advisory Board of the
National Recovery Administration (1933). In 1934 he returned to the private sector when he joined
U.S. Steel, the nation's largest corporation; he eventually become chairman in 1938. He then returned to public service, serving on the National Defense Advisory Commission, as chairman of the War Resources Board (1939) and administrator of the
Lend-Lease Program (1941). He held the latter position until he became undersecretary of state in 1943. In January 1944,
Macmillan published his book,
Lend-Lease, Weapon for Victory. The poor health of Secretary of State
Cordell Hull made Stettinius the chair of the 1944
Dumbarton Oaks Conference and, in December 1944, he succeeded Hull as Secretary of State. Stettinius was a member of the US delegation to the February 1945
Yalta Conference. Truman thought Stettinius was too soft on communism, and had yielded too much to Moscow when he was Roosevelt's advisor at Yalta. Truman had an old Senate friend in mind as a replacement,
James F. Byrnes. Stettinius resigned as Secretary of State to accept the position of the first
United States Ambassador to the United Nations. He chaired the United States delegation to the
United Nations Conference on International Organization held in San Francisco from April 25 to June 26, 1945, which brought together delegates from 50 Allied nations to create the United Nations.
Charles W. Yost, who had been Under Secretary of State Stettinius' assistant in the State Department, was named Stettinius' Executive Secretary at the United Nations Conference. Stettinius resigned in June 1946, as he became critical of what he saw as Truman's refusal to use the UN as a tool to resolve tensions with the Soviet Union. For three years after his return to private life, Stettinius served as rector of the University of Virginia. In 1947, Stettinius and friend
William Tubman, the president of
Liberia, helped form the Liberia Company (now
International Registries), a partnership between the Liberian government and American financiers to provide funds for the development of the African nation. == Personal life ==