Jimmy Hoffa three days, the FBI called off the dig. No human remains were found, and the case remains open. 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
International Brotherhood of Teamsters the Teamsters during the Tobin administration. By 1941, the union was considered the most corrupt in the United States, and the most abusive towards its own members. Tobin vigorously defended the union against such accusations, but also instituted many constitutional and organizational changes and practices which made it easier for union officials to engage in criminal offenses. By the beginning of World War II, the Teamsters was one of the most powerful unions in the country, and Teamster leaders influential in the corridors of power. Union membership had risen more than 390 percent between 1935 and 1941 to 530,000. In