Jimmy Hoffa a result of Hoffa's work with other union leaders to consolidate local union trucker groups into regional sections, and then into a national body — work that Hoffa ultimately completed over a period of two decades — membership grew to 170,000 members by 1936. Three years later, there were 420,000. The number grew steadily during World War II and through the post-war boom to top a million members by 1951. The Teamsters organized truck drivers and warehousemen, first throughout the Midwest, then nationwide. Hoffa played a major role in the union's skillful use of "quickie strikes", secondary boycotts, and other
Jimmy Hoffa rest of his life. Hoffa left school at age 14 and began working full-time manual labor jobs to help support his family. Hoffa married Josephine Poszywak, an 18-year-old Detroit laundry worker of Polish heritage, at Bowling Green, Ohio on September 24, 1936; the couple had met during a non-unionized laundry workers' strike action six months earlier. The couple had two children: a daughter, Barbara Ann Crancer, and a son, James P. Hoffa. The Hoffas paid $6,800 in 1939 for a modest home in northwest Detroit. The family later owned a simple summer lakefront cottage in Orion Township, Michigan, north of