Civil rights -- United States

Primarily correspondence, reports, minutes, newspaper clippings, and broadsides dealing with his activities as a leader in Local 22 (in Series I), as well as his other union and political activities (in Series II). Among the most significant material in the collection is correspondence documenting Zimmerman's activities with the Communist Party in the U.S. and its various factions and splinter groups, as well as other political organizations and figures.

The Local 155 records consist primarily of the correspondence of Louis Nelson, manager of Local 15. The activities of the local are documented through articles, speeches, and other materials from the depression years through the late 1960s. Also included are minutes of Local 155's Executive Board between 1979 and 1995, issues of the local's publication, Knitgood Workers' Voice, from 1937 to 1995, files on Joe Lombardo and the Local 155's Health and Welfare Fund.

The Charles Zimmerman papers consist primarily of correspondence, reports, minutes, newspaper clippings, and broadsides dealing with his activities as a leader in Local 22 (in Series I), as well as his other union and political activities (in Series II).