US State Dept. report IR-6165, January 1953: Communism in the Free World - Indonesia section on Gerwis
US State Department Office of Intelligence Research report IR-6165, 'Communism in the Free World' (January 1953), a compilation of about 30 country studies of communist capabilities, held in the CIA reading room. The Indonesia study (IR-6165.3) covers PKI aims and tactics, labour, and front organisations. Section VI.A
CIA intelligence survey of the PKI's history, structure and front organisations, May 1955, before the September 1955 elections. Section III.E (report pp. 49-50) profiles Gerwani: founded 1950 as Gerwis, renamed Gerwani at the March 1954 congress, 25,000+ members, S.K. Trimurti general chairman and Umi Sardjono chairman
CIA study, September 1958: The international communist fronts in 1958
CIA/US government study (September 1958) surveying the activities of the international Communist fronts (World Peace Council, Afro-Asian Solidarity Council, WFDY/IUS, WIDF, WFTU and others) in 1958. Chapter IV covers WIDF's Fourth Congress (Vienna, 1-5 June 1958) and secretariat. Gerwani appears only briefly: Suharti (