Jimmy Hoffa Jimmy Hoffa James Riddle Hoffa (February 14, 1913 – disappeared July 30, 1975) was an American labor union leader who served as the President of the International Brotherhood of Teamsters (IBT) union from 1957 until 1971. He vanished in late July 1975, at age 62. From an early age, Hoffa was a union activist and became an important regional figure with the IBT by his mid-20s. By 1952 he was national vice-president of the IBT, and was its general president between 1957 and 1971. He secured the first national agreement for teamsters' rates in 1964 with the National Master Freight
United States Senate Select Committee on Improper Activities in Labor and Management Hoffa entered prison on March 7, 1967, and Frank Fitzsimmons was named Acting President of the union. Hoffa resigned as Teamsters president on July 9, 1971. Barred by a commutation of sentence agreement from participating directly or indirectly in union activities until 1980, Hoffa was released from prison on December 23, 1971, but disappeared on July 30, 1975 (and was presumably murdered). The hearings had positive benefits for other key participants as well. The Kennedy-Ives bill was Senator John F. Kennedy's most important legislative accomplishment, and although it was not enacted into law many Senators nonetheless revised their opinion and