July 12 – Alfred Dreyfus, French military officer, subject of the Dreyfus affair (b. 1859) July 15 - Pieter Cort van der Linden, Dutch politician (b. 1846) July 17 Cudjoe Lewis (Oluale Kossola), the last known surviving male victim of Clotilda, the last ship of the Atlantic slave trade (born c.1941) James Moore, English winner of the first ever cycle race (b. 1849) George William Russell, Irish nationalist, poet and artist (b. 1867) Daniel Salamanca Urey , 33rd President of Bolivia (b. 1869) July 22 – Laura M. Johns, American suffragist, journalist (b. 1849) July 28 – Meletius IV of Constantinople, Greek Patriarch of Alexandria (b. 1871) July 31 – Gustav Lindenthal, Czech civil engineer and bridge designer (b. 1850) August August 12 – Gareth Jones, Welsh journalist (b. 1905) August 14 – Léonce Perret, French film actor and producer (b. 1880) August 15 Paul Signac, French painter (b. 1863) Wiley Post, American pilot (b. 1898) Will Rogers, American humorist and actor (b. 1879) August 17 – Charlotte Perkins Gilman, American feminist and writer (b. 1860) August 20 – Edith Roberts, American actress (b. 1899) August 21 – John Hartley, English tennis player, double winner of Wimbledon (b. 1849) August 22 Frantz Jourdain, Belgian architect (b. 1847) Pavlos Kountouriotis, Greek admiral, 1st President of Greece (b. 1855) August 25 – Mack Swain, American actor (b. 1876) August 27 – Childe Hassam, American painter (b. 1859) August 29 – Queen Astrid of Belgium (b. 1905) August 30 – Henri Barbusse, French novelist and journalist (b. 1873) September September 8 Takejirō Tokonami, Japanese politician, Home Minister, Railway Minister and Minister of Communication (b. 1867) Carl Weiss, American physician and murderer of Huey Long (b. 1906) September 10 – Huey Long, American politician (assassinated 2 days before) (b. 1893) September 19 Jules Cambon, French diplomat (b. 1845) Konstantin Tsiolkovsky, Russian rocket scientist (b. 1857) September 23 – DeWolf Hopper, American actor, comedian (b. 1858) September 28 – William Kennedy Dickson, Scottish inventor, cinema pioneer and film director (b. 1860) October October 1 – Grigore C. Crăiniceanu, Romanian general and politician (b. 1852) October 19 – Maria Cederschiöld, Swedish journalist and women's rights activist (b. 1856) October 20 – Arthur Henderson, Scottish politician, recipient of the Nobel Peace Prize (b. 1863) October 22 – Edward Carson, Baron Carson, Irish lawyer and politician (b. 1854) October 23 – Charles Demuth, American artist (b. 1883) November