"15 of the 18 leaders of Minneapolis Truckdrivers Union Local 544-CIO and of the Socialist Workers Party are shown marching to jail in Minneapolic on Dec. 31 to begin serving their twelve to sixteen month prison sentences...."

A brief account of the Ludlow Massacre, assembled from John Greenway, American Folksongs of Protest; Louis Adamic, Dynamite! The History of Class Conflict in America; and Wallace and Hofstadter, American Violence, A Documentry History. Also includes personal comments from [visitors] to the monument and a dedication page to political prisoners and martyrs in the United States.

This archive, and its accompanying library, were acquired by Guy Logsdon, then Library Director, in 1977. It is ascribed to Harold Leventhal, who was a folk music manager, handling such musicians as the Weavers, Woody Guthrie, Peter, Paul and Mary and Joan Baez. This archive includes an selection of correspondence of the noted activist Ammon Hennacy as well as biographical materials.

"Come hear the facts about Fascist and Klan terror in the south, told by leading organizers just returned from the terror area. Presented under the auspices of the National Committee for Defense of Political Prisoners; Committee to Support Southern Textile Organization-Southern District; and International Labor Defense.

Flyer from Howard Fast appealing for donations to help the children of victims imprisoned or standing trial due to the Smith "gag" Act.

"Dear Friend: When the 18 Minneapolis union and socialist leaders were placed behind prison bars on Decembver 31st, Roger Baldwin, Director of the American Civil Liberties Union declared: This imprisonment nevewr should have taken place...."

Single page of a pamphlet which lists National Committee members, list of unions supporting the Minneapolic Case, and what YOU can do to help free the "18".

"...YOU are summoned to appear at a hearing of the Hollywood Investigation..." Flyer announcing two meetings with featured speakers, held in Berkeley and San Francisco, California, regaring the probes, investigations, loyalty oaths and witch hunts continuing in the US government.