Documents received and drawn up in his functions as secretary and some private letters, mainly from the period 1946-1973. Minutes of the FSG 1931-1932; cashbooks 1925-1957 of the FSG, ABAF and other organizations; appeals and financial reports of the Relief Fund of the IWMA and ABAF 1926-1958; files consisting of correspondence and some other documents, in English, Russian and Yiddish, relating to: L'Adunata dei refrattari New York 1948-1958, Delo Truda/Probuždenie 1947-1963, Jacques Doubinsky (also on behalf of the Paris Section of the ABAF) 1931-1935, 1945-1960, Joseph Cohen (also on behalf of La Pensée Libre Paris), Fraye Arbeter Shtime New York 1947-1963, Senya and Mollie Steimer 1943-1957, Francisco Ferrer Modern School 1947-1958, Freedom Press 1938-1959, Alexander Berkman 1925-1935, Emma Goldman 1936-1937, 1940, Rudolf Rocker 1931-1957, George Woodcock 1948-1957, etc., and correspondence with Jewish anarchists in Argentina and anarchist organizations in Japan; file of letters from Russian exiles 1923-1927; file on financial support for the Confederacin̤ Nacional del Trabajo (CNT)/Federación Anarquista Ibérica (FAI) 1937-1938; files of letters from Spanish refugees and French, Italians and Germans, etc. confirming the receipt of CARE (Cooperative for American Remittances to Europe) packages 1946-1949; file on relief for Bulgarian political refugees c. 1948-1959; files on the publication of translations of works by Grigorij Maksimov; typescripts of books and articles by Yelensky, including one on the Russian Revolution in Novorossijsk; autobiographical note, n.d. and biographical note on his wife B̀essie Yelensky (1891-1968)'; some handwritten manuscripts of articles by Max Nettlau and typescripts by others, including two different works (one in photocopy) on the Sunrise Cooperative Farm Community; clippings of articles by Yelensky. NB. The remaining part of his papers, mainly from the last years of his life, in the Labadie Collection, University of Michigan, Ann Arbor, USA.
