1859) July 8 – Sir Joseph Ward, 17th Prime Minister of New Zealand (b. 1856) July 11 – Masataka Ogawa, Japanese chemist (b. 1865) July 15 Leopold Auer, Hungarian violinist (b. 1845) Rudolph Schildkraut, Ottoman-born Austrian actor (b. 1862) July 16 – Juan Luis Sanfuentes, 16th President of Chile (b. 1858) July 19 Sir Robert Stout, 2-time prime minister of New Zealand (b. 1844) Oku Yasukata, Japanese field marshal, leading figure in the early Imperial Japanese Army (b. 1847) July 23 – Glenn Curtiss, American aviation pioneer (b. 1878) July 26 – Pavlos Karolidis, Greek historian (b. 1849) July 28 – Allvar Gullstrand, Swedish ophthalmologist, recipient of the Nobel Prize in Physiology or Medicine (b. 1862) August 4 – Siegfried Wagner, German composer and conductor, son of Richard Wagner (born 1869) August 11 – Edward Angle, American dentist (b. 1855) August 12 – Sir Horace Smith-Dorrien, English general (b. 1858) August 15 – Florian Cajori, Swiss-born historian of mathematics (b. 1859) August 21 – Sir Aston Webb, British architect (b. 1849) August 24 – Tom Norman, British freak showman (b. 1860) August 26 – Lon Chaney, American actor (b. 1883) August 29 – William Archibald Spooner, British scholar, Anglican priest (b. 1844) September 1 – Peeter Põld, Estonian pedagogical scientist, politician (b. 1878) September 10 – Aubrey Faulkner, South African cricketer (b. 1881) September 18 – Ruth Alexander, pioneering American pilot (b. 1905) September 20 – Gombojab Tsybikov, Russian explorer (b. 1873) September 28 Daniel Guggenheim, American mining magnate and philanthropist (b. 1856) Prince Leopold of Bavaria, German prince and field marshal (b. 1846) September 30 – Albert W. Grant, American admiral (b. 1856) October 2 – Gordon Stewart Northcott, American serial killer (executed) (b. 1906) October 4 – Olena Pchilka, Ukrainian writer, translator and publisher (b. 1849) October 10 – Adolf Engler, German botanist (b. 1844) October 15 – Herbert Henry Dow, Canadian-born chemical industrialist (b. 1866) October 16 – James Surtees Phillpotts, English writer and educator (b. 1839) October 20 – Valeriano Weyler, 1st Duke of Rubí, Spanish general (b. 1838) October 26 – Harry Payne Whitney, American horse breeder and businessman (b. 1872) October 27 – Ellen Hayes, American mathematician and astronomer (b. 1851) October 28 – Mary Harrison McKee, de facto First Lady of the United States (b. 1858) October 30 – Sakichi Toyoda, Japanese inventor, industrialist (b. 1867) November – Alfred Wegener, German geophysicist, meteorologist