Eugène Humbert papers: personal documents 1889-1914; correspondence with Jeanne c. 1909-1944, Lucette c. 1921-1944 and some other family members; correspondence with Berty Albrecht 1930-1934, Pierre Bellino c. 1929-1942, Félix Delmarle c. 1912-1924, Léonie Devaldès 1943-1944, Manuel Devaldès 1908-1944, Gabriel Giroud c. 1904-1944, Fernand Kolney c. 1909-1929, Jean Marestan c. 1910-1944, Victor Margueritte 1927-1939, Eugène Merle c. 1911-1938, Pierre Ramus 1933, Nelly Roussel (photocopies) 1904-1914, Jan Rutgers c. 1904-1916 and others; correspondence relating to Régéneration 1900-1908, Génération Consciente 1908-1914 and La Grande Réforme 1931-1939; correspondence relating to La Librairie du Progrès 1926-1928; `Lettre ouverte ̉M. le Sénateur Bérenger', with correspondence 1911; notes on `Principes de Philosophie Matérialiste' 1894; manuscripts of articles by Sébastien Faure, Camillo Berneri, Victor Margueritte and Gabriel Giroud. Jeanne Humbert papers: diaries 1939-1962; personal documents 1915-1949; correspondence with Eugène c. 1909-1944, Lucette 1933-1976 and some other family members; correspondence with André Arru 1979-1983, Berty Albrecht 1930-1934, Jean Challaye c. 1939-1983, Francis B. Conem 1957-1959, Félix Delmarle c. 1912-1924, Léonie Devaldès 1938-1945, Manuel Devaldès 1945-1955, Gabriel Giroud c. 1904-1945, Louis Nucera 1974-1983, May Picqueray c. 1962-1983, Maurice Robin 1971-1978 and others; correspondence relating to La Grande Réforme 1946-1949; manuscripts; albums with clippings and correspondence relating to her books `En Pleine Vie', `Le Pourrissoir' an `Sous la Cagoule' 1930-1934; documents relating to the LICP 1932-1935; documents concerning the libertarian poet Paul-Napoléon Roinard c. 1911-1955 and her godchild the film maker Jean Vigo c. 1903-1975. Papers of others: some correspondence and personal documents of family members 1863-1990; letters by Jeanne Humbert to Francis Ronsin (1940) 1979-1980.