(b. 1867) June 26 – Prince Albert I of Monaco (b. 1848) June 27 – Prince Higashifushimi Yorihito of Japan (b. 1867) June 28 – Velimir Khlebnikov, Russian poet, playwright (b. 1885) July July 4 – Lothar von Richthofen, German World War I flying ace (flying accident) (b. 1894) July 6 – Mary Theresa Ledóchowska, Polish-born missionary sister (b. 1863) July 8 – Muhammad V an-Nasir, Bey of Tunis (b. 1855) July 17 – Heinrich Rubens, German physicist (b. 1865) July 20 – Andrey Markov, Russian mathematician (b. 1856) July 22 – Jōkichi Takamine, Japanese chemist (b. 1854) July 25 – Paul Maistre, French general (b. 1858) July 28 Jules Guesde, French Socialist journalist and politician (b. 1845) Édouard Harlé, French engineer and prehistorian (b. 1850) July 31 – Mary Noailles Murfree, American novelist (b. 1850) August August 2 Alexander Graham Bell, Scottish-born inventor (b. 1847) Harry Boland, Irish republican (b. 1887) August 3 – Ture Malmgren, Swedish journalist, politician (b. 1851) August 4 Nikolai Nebogatov, Russian admiral (b. 1849) Enver Pasha, Ottoman military leader, Turkish revolutionary (b. 1881) August 5 – Tommy McCarthy, American baseball player, MLB Hall of Famer (b. 1863) August 12 – Arthur Griffith, Irish republican, President of Dáil Éireann (b. 1872) August 13 – Saint Benjamin of Petrograd (b. 1873) August 14 – Alfred Harmsworth, 1st Viscount Northcliffe, British newspaper magnate (b. 1865) August 19 – Felip Pedrell, Spanish composer (b. 1841) August 22 Sir Thomas Brock, British sculptor (b. 1847) Michael Collins, Irish republican, revolutionary, and Chairman of the Provisional Government (assassinated) (b. 1890) August 23 – Gheorghe Bengescu, Romanian diplomat and man of letters (b. 1844) August 25 – Ioannis Svoronos, Greek numismatist (b. 1863) August 29 – Georges Sorel, French philosopher, theorist of revolutionary syndicalism (b. 1847) September September 1 – Princess Helena, Duchess of Albany, British royal (b. 1861) September 4 – James Young, Scottish footballer (motorcycle accident) (b. 1882) September 5 – Sarah Winchester, American builder of the Winchester Mystery House (b. 1837) September 7 – William Stewart Halsted, American surgeon (b. 1852) September 10 Saint Chrysostomos of Smyrna (b. 1867) Wilfrid Scawen Blunt, British poet (b. 1840) September 25 – Carlo Caneva, Italian general (b. 1845) September 26 Sir Charles Wade, Australian politician, Premier of New South Wales (b. 1863) Thomas E. Watson, American politician, senator (b. 1856) October October 7 – Marie Lloyd, British singer (b. 1870) October