Jimmy Hoffa IBT would expand as the union itself grew. Hoffa worked to defend the Teamsters unions from raids by other unions, including the CIO, and extended the Teamsters' influence in the Midwestern states, from the late 1930s to the late 1940s. Although he never actually worked as a truck driver, he became president of Local 299 in December 1946. He then rose to lead the combined group of Detroit-area locals shortly afterwards, and advanced to become head of the Michigan Teamsters groups sometime later. During this time, Hoffa obtained a deferment from military service in World War II by successfully making
Jimmy Hoffa arrived at the scene. State police were brought in and the FBI was alerted. At suppertime, Hoffa's son, James P. Hoffa, filed a missing persons report. Years of extensive investigation, involving numerous law enforcement agencies including the FBI, came to no definite conclusion. Giacalone and Provenzano, who denied having scheduled a meeting with Hoffa, were found not to have been near the restaurant that afternoon. Hoffa was declared legally dead on July 30, 1982. The case continues to be the subject of rumor and speculation. Hoffa's wife, Josephine, died in 1980. According to her children, she died of the grief