Extensive correspondence with Anna Kuliscioff 1898-1899, 1920-1925 and with his mother during his imprisonment in 1898-1899; correspondence by Turati and Kuliscioff with Giovanni Amendola 1923-1925, Agostino Bertani 1881, 1885, Leonida Bissolati 1886, 1898-1899, 1902, 1904, Andrea Costa 1888-1891, 1901, 1906, Edmondo de Amicis 1891-1897, Friedrich Engels 1891-1895, Karl and Luise Kautsky 1892, 1899-1901, 1908, 1922-1923, 1927, Antonio Labriola 1890-1892, 1897, Arturo Labriola 1921-1924, 1929, Giacomo Matteotti 1919-1924, Vilfredo Pareto 1893, 1897-1899, Carlo Sforza 1924, Claudio Treves 1898, 1915, 1923, 1929 and others; some letters from Friedrich Adler 1922-1923, 1929, August Bebel 1893-1899 and Paul Lafargue 1892-1896; manuscripts of articles, speeches, literary prose and poetry; notes; manuscripts by Kuliscioff and others; correspondence and other documents on the Unione Giornalisti Italiani G̀iovanni Amendola' and the Concentrazione Antifascista 1927-1932, on the 10th International Labour Conference in Geneva 1927 and the International Antifascist Conference in Paris 1929; printed material, including copies of Libertà, organ of the Concentrazione di Azioni Antifascista; transcriptions and notes by Alessandro Schiavi for his editions of the papers of Turati; catalogue of Turati's library n.d. NB. Other parts of his papers at several institutions in Italy.
