Harrison George was a senior Communist Party of the United States (CPUSA) leader, editor of the party's West Coast newspaper, People's Daily World, and member of the Comintern's Pan-Pacific Trade Union Secretariat (PPTUS).
The PPTUS was established in 1927, with Earl Browder as its General Secretary. Document's from the Comintern Archive in Moscow reveal the relationship between Browder and George who at the time was an Industrial Workers of the World (IWW) leader and Communist mole in the Wobblies. Another document is the minutes of a PPTUS meeting signed by George and by Tsutomu Yano, who would later recruit people for the Richard Sorge spy ring in Japan. Intercepted Soviet intelligence traffic reveals a covert relationship George had as a cutout transmitting information from James Walter Miller, who worked in the U.S. Post Office's Office of Censorship, to the San Francisco KGB.
- Files of the Communist Party USA in the Comintern Archives.
- Harvey Klehr, John Earl Haynes, and Fridrikh Igorevich Firsov, The Secret World of American Communism (New Haven: Yale University Press, 1995), 53.
- John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America (New Haven: Yale University Press, 1999), 229.