September 4 Daniel Alexander Cameron, Canadian politician (b. 1870) Juan Campisteguy, Uruguayan lawyer, soldier and 25th President of Uruguay (b. 1859) September 5 – David Hendricks Bergey, American bacteriologist (b. 1860) September 6 – Harry Charles Purvis Bell, British civil servant, commissioner (b. 1851) September 8 – Frank Alexander, American actor (b. 1879) September 9 Mikhail Diterikhs, Russian general (b. 1874) Géza Horváth, Hungarian doctor, entomologist (b. 1847) September 11 – Nazmi Ziya Güran, Turkish painter (b. 1881) September 13 – Ellis Parker Butler, American humorist (b. 1869) September 14 – Tomáš Garrigue Masaryk, Czechoslovakian politician, sociologist, philosopher and 1st President of Czechoslovakia (b. 1850) September 15 Anders Bundgaard, Danish sculptor (b. 1864) Clifford Heatherley, British actor (b. 1888) September 20 Maksymilian Horwitz, Polish socialist, communist activist (b. 1877) Lev Karakhan, Soviet revolutionary hero, diplomat (b. 1889) September 21 – Osgood Perkins, American actor (b. 1892) September 23 – Cleto González Víquez, 18th and 26th President of Costa Rica (b. 1858) September 22 – Ruth Roland, American actress (b. 1892) September 26 Bessie Smith, African-American blues singer (b. 1894) Edward Filene, American businessman, philanthropist (b. 1860) September 27 – Alikhan Bukeikhanov, Kazakh statesman, politician, publicist, teacher, writer and Prime Minister of Alash Autonomy (b. 1866) September 29 – Ray Ewry, American Olympic athlete (b. 1873) October October 1 – Prince Kuni Taka of Japan (b. 1875) October 3 Baden Baden-Powell, American aviator pioneer (b. 1860) Richard Hertwig, German zoologist (b. 1850) October 6 – Angelo Musco, Italian actor (b. 1872) October 9 August de Boeck, Flemish composer (b. 1865) Ernest Louis, Grand Duke of Hesse, German prince (b. 1868) October 10 – Peter of Krutitsy, Soviet Orthodox priest, martyr and metropolitan (b. 1862) October 11 – Emma E. Bower, American physician, club-woman, and newspaperwoman (b. 1852) October 13 – Kazimierz Nowak, Polish traveller (b. 1897) October 14 – Salvatore Micalizzi, Italian Roman Catholic priest and venerable (b. 1856) October 15 – James Marcus, American actor (b. 1867) October 16 Jean de Brunhoff, French writer (b. 1899) William Sealy Gosset, English chemist and statistician (b. 1876) October 17 J. Bruce Ismay, English businessman (b. 1862) Antônio Parreiras, Brazilian painter, illustrator (b. 1860) October 19 Pedro Chutró, Argentine physician (b. 1880) Ernest Rutherford, New Zealand physicist, Nobel Prize in Chemistry recipient (b. 1871) October 23 – Nikolai Klyuev, Russian poet (b. 1884) October 26 – Józef Dowbor-Muśnicki, Polish general (b. 1867) October