Series l. Communist Party material. 1937-1946. Series II. Expulsion from CPUSA. 1944-1945. Series III. Correspondence. 1929-1985. Subseries A. Subseries B. (Individual Correspondents) Subseries C. Subseries D. Subseries E. Subseries F. Series IV. Political Activities. 1924-1958. Series 5. Trials. 1932-1941. SeriesVI. Biographical and other manuscripts. Subseries A. "The storm must be ridden" (ca 1945?) Subseries B. Oral history interview transcripts and notes. Subseries C. Tale of three worlds (unpublished ms.) ca 1960-63 Subseries D. Play and poetry Subseries E. Miscellaneous post-1945 notes Series VII: Additional Correspondence