 He put much more value on organizing workers into unions, favoring unions that brought together all workers in a given industry over those organized by the craft skills workers practiced.After his work with the Brotherhood of Locomotive Firemen and the American Railway Union, Debs' next major work in organizing a labor union came during the founding of the Industrial Workers of the World (IWW).On June 27, 1905 in Chicago, Illinois, Debs and other influential union leaders including Bill Haywood, leader of the Western Federation of Miners; and Daniel De Leon, leader of the Socialist Labor Party, held what Haywood called the "Continental Congress of the working class".