Jimmy Hoffa Agreement. He played a major role in the growth and development of the union, which eventually became the largest (by membership) in the United States with over 2.3 million members at its peak, during his terms as its leader. Hoffa became involved with organized crime from the early years of his Teamsters work, and this connection continued until his disappearance in 1975. He was convicted of jury tampering, attempted bribery and fraud in 1964, in two separate trials. He was imprisoned in 1967 and sentenced to 13 years. In mid-1971, he resigned as president of the union as part of
African Trade Union Congress African Trade Union Congress The African Trade Union Congress (ATUC) was a national trade union centre in Rhodesia (later Zimbabwe). The ATUC represented black African workers, and was opposed to the system of white minority rule in Rhodesia. The ATUC was formed in 1962 as the Southern Rhodesian African Trade Union Congress (SRATUC), a breakaway from the more moderate Southern Rhodesian Trade Union Congress (SRTUC). The new union was led by Josiah Maluleke, former Secretary-General of the SRTUC. The SRATUC absorbed the older organisation a year later in 1963, with the combined body adopting the name African Trade Union Congress.