"Documents and Records of a Representative of the Fourth International In Mexico" created and collected by Charles Curtiss 1938-1940

"Reorganizing the Mexican Section of the Fourth International" 1939

"The Break with Diego Rivera" 1938-1940

"Plenum of the National Committee" minutes 1938 Nov. 19-20

"Pan-American (Latin American, etc.) Bureau of the IV International" minutes 1938 Nov 8

"Documents of the Fouth International and its affiliates and individuals in Europe and Latin America" 1938-1941

Alexander, Robert J. (Professor of Rutgers University on Mexican Section of the Fourth International) correspondence 1969-1971

Allen, Naomi (Pathfinder Press) correspondence 1973

"An appraisal of Leon Trotsky," undated

"Diego Rivera's Stand of 48 Years Ago Debated" 1986-1987

"Notes on the history of labor in Mexico since the overthrow of Porfirio Diaz, especially on Partido Liberal Mexicano and the Flores Magon brothers; articles and writings on the Alianza Popular Revolucionaria Americana (APRA)," 1908-1921

"Leon Trotsky and the Mexico of Cardenas, 50th Anniversary, Days of Commemoration" 1987

Articles from various periodicals on socialist democracy, dictatorship of the proletariat, and Leninism 1985-1987