who led the house un american activities committee
House Un-American Activities Committee On May 26, 1938, the House Committee on Un-American Activities was established as a special investigating committee, reorganized from its previous incarnations as the Fish Committee and the McCormack-Dickstein Committee, to investigate alleged disloyalty and subversive activities on the part of private citizens, public employees, and those organizations suspected of having communist or fascist ties; however, it concentrated its efforts on communists.[10][11] It was chaired by Martin Dies Jr. (D-Tex.), and therefore known as the Dies Committee.