1856-1941, British labor leader and socialist. He was an organizer of the 1889 London dock strike, which was an important step in the unionization of unskilled English laborers. Secretary (1894-97) of the Independent Labour party, he helped to organize (1902) the Labour party in Australia. Mann returned from Australia a proponent of syndicalism, and he was one of the founders (1920) of the British Communist party. He was jailed several times for his radical activities.
