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
Oilfields Workers' Trade Union Oilfields Workers' Trade Union The Oilfields Workers' Trade Union or OWTU is one of the most powerful trade unions in Trinidad and Tobago. Currently led by Ancel Roget, the union was born out of the 1937 labour riots, the union was nominally led by the imprisoned TUB Butler but was actually organised by lawyer Adrian Cola Rienzi. The union was established on July 25, 1937, and formally registered on September 15. The first meetings were held in Fyzabad, and the first official headquarters were established on Coffee Street, San Fernando. In the 1960s and 1970s, under the leadership of George