IWW members in which four legionnaires and a Centralia deputy sheriff were shot dead. Which side initiated the violence of the Centralia massacre is disputed. A number of IWWs were arrested, one of whom, Wesley Everest, was lynched by a mob that night. Members of the IWW were prosecuted under various State and federal laws and the 1920 Palmer Raids singled out the foreign-born members of the organization. Organizational schism and afterwards IWW quickly recovered from the setbacks of 1919 and 1920, with membership peaking in 1923 (58,300 estimated by dues paid per capita, though membership was likely somewhat higher as the union tolerated delinquent members). But recurring internal debates, especially between those who sought either to centralize or decentralize the organization, ultimately brought about the IWW's 1924 schism. The twenties witnessed the defection of hundreds of Wobbly leaders (including Harrison George, Elizabeth Gurley Flynn, John Reed, George Hardy, Charles Ashleigh, Earl Browder and, in his Soviet exile, Bill Haywood) and, following a path recounted by Fred Beal, thousands of Wobbly rank-and-filers to the Communists and Communist organizations. At the beginning of the 1949 Smith Act trials, FBI director J. Edgar Hoover was disappointed when prosecutors indicted fewer CPUSA members than he had hoped, and—recalling the arrests and convictions of over one hundred IWW leaders in 1917—complained to the Justice Department, stating, "the IWW as a subversive menace was crushed and has never revived. Similar action at this time would have been as effective against the Communist Party and its subsidiary organizations." 1950–2000 Taft–Hartley Act After the passage of the Taft-Hartley Act in 1946 by Congress, which called for the removal of Communist union leadership, the IWW experienced a loss of membership as differences of opinion occurred over how to respond to the challenge. In 1949, US Attorney General Tom C. Clark placed the IWW on the Attorney General's List of Subversive Organizations in the category of "organizations seeking to change the government by unconstitutional means" under Executive Order 9835, which offered no means of appeal, and which excluded all IWW members from Federal employment and federally subsidized housing programs (this order was revoked by Executive Order 10450 in 1953). At this time, the Cleveland local of the Metal and Machinery Workers Industrial Union (MMWIU) was the strongest IWW branch in the United States. Leading figures such as Frank Cedervall, who had helped build the branch up for over ten