Warren Stanford Stone (1 February 1860 – 12 June 1925) was a railway worker who rose to head the Brotherhood of Locomotive Engineers in the United States from 1903 to 1925.

He supported a radical plan in which workers in an industry would take one-third of the profits, the other thirds going to capital and the public.

[3] He obtained a job as a locomotive fireman with the Chicago, Rock Island and Pacific Railroad in 1879, based in Eldon, Iowa.

[3] Stone believed that if a worker "wants to join a union, all right, but it is contrary to the principles of free government and the Constitution of the United States .

[4] Stone was proposed as a challenger to Samuel Gompers, President of the American Federation of Labor at that organization's Chicago conference in January 1920.

Gompers believed the federation should take a non-socialist approach in representing wage-earners, campaigning for better wages, better hours, better working conditions and the unfettered right to strike.

[6] Stone was one of the main supporters of the Progressive Party that backed Senator Robert M. La Follette, Sr. as candidate for President of the United States in 1924.

Under his leadership the Brotherhood of Locomotive Engineers engaged in a wide range of financial activities in banks, trust companies and other business ventures.

[7] The Brotherhood of Locomotive Engineers' Cooperative Bank was formed in Cleveland, Ohio in November 1920, and took over $1 million in deposits in the first two months.