Elizabeth Gurley Flynn was an American labor leader, activist, and feminist who played a leading role in the Industrial Workers of the World (IWW). Flynn was a founding member of the American Civil Liberties Union and a visible proponent of women's rights, birth control, and women's suffrage. She joined the Communist Party USA in 1936 and late in life, in 1961, became its chairwoman. She died during a visit to the Soviet Union, where she was accorded a state funeral with processions in Red Square attended by over 25,000 people.

The Industrial Workers of the World (IWW), whose members are nicknamed "Wobblies", is an international labor union founded in Chicago in 1905. The nickname's origin is uncertain. Its ideology combines general unionism with industrial unionism, as it is a general union, subdivided between the various industries which employ its members. The philosophy and tactics of the IWW are described as "revolutionary industrial unionism", with ties to socialist, syndicalist, and anarchist labor movements.