The collection consists of source materials that Friedheim used for his book, The Seattle General Strike, including correspondence (both correspondence Friedman collected concerning the General Strike as well as his own correspondence), interviews, newspaper articles, notes, ephemera, writings (of Friedheim and others), draft copies of the book, transcripts from court proceedings, clippings. Also included are draft copies of the book, and one reel of microfilm containing documents collected from the National Archives..

The interviews in folder six of box one come from a study that the Bureau of Labor Economics, University of Washington, conducted in the 1940s.

Folders seven through eleven in box one contain transcripts from the People v. Lloyd trial in Chicago. This trial of Communist Labor party leaders took place one year after the general strike and included testimony from five people involved in the Seattle general strike. These folders contain the more than two hundred pages of testimony that these witnesses gave about the strike, as well as the argument by the famous liberal lawyer, Clarence Darrow, intended to rebut the anticommunist testimony.