Winfield Woolworth, American businessman (b. 1852) April 9 – Sidney Drew, American stage and film actor (b. 1863) April 10 – Emiliano Zapata, Mexican revolutionary (b. 1879) April 14 – Auguste-Réal Angers, Canadian judge and politician, 6th Lieutenant Governor of Quebec (b. 1837) April 15 – Jane Delano, American nurse and founder of the American Red Cross Nursing Service (b. 1862) April 19 – Andrei Eberhardt, Russian admiral (b. 1856) April 20 – Thomas Egan, American gangster (b. 1874) April 21 – Jules Védrines, French pre-war aviator and World War I pilot (b. 1881) April 23 – Prince Tsunehisa Takeda (b. 1882), Spanish flu April 27 María Antonia Bandrés Elósegui, Spanish Roman Catholic religious professed and blessed (b. 1898) Anton Irv, Estonian military officer (b. 1886) May May 2 – Gustav Landauer, German anarchist (b. 1870; assassinated) May 4 – Milan Rastislav Štefánik, Slovak general, politician and astronomer (b. 1880) May 6 – L. Frank Baum, American author, poet, playwright, actor and independent filmmaker (The Wizard of Oz) (b. 1856) May 9 – Juan Isidro Jimenes Pereyra, Dominican political figure, 2-time President of the Dominican Republic (b. 1846) May 12 – D. M. Canright, American Seventh-day Adventist minister and author, later one of the church's severest critics (b. 1840) May 14 – Henry J. Heinz, American entrepreneur (b. 1844) May 15 – Aaron Aaronsohn, Romanian-born Israeli botanist (b. 1876) May 21 – Victor Segalen, French naval doctor, ethnographer, archeologist, writer, poet, explorer, art-theorist, linguist and literary critic (b. 1878) May 25 – Madam C. J. Walker, African-American entrepreneur and philanthropist (b. 1867) May 28 – Hermann von Spaun, Austro-Hungarian admiral (b. 1833) June June 1 – Caroline Still Anderson, American physician (b. 1848) June 5 – Eugen Leviné, German revolutionary (b. 1883; assassinated) June 6 – Frederic Thompson, American architect and showman (b. 1873) June 15 – Prince Francis Joseph of Braganza (b. 1879) June 19 – Petre P. Carp, 2-Time Prime Minister of Romania (b. 1837) June 29 José Gregorio Hernández, Venezuelan medician and Roman Catholic venerable (b. 1864) Alexander Ragoza, Russian general and Ukrainian politician (executed) (b. 1858) June 30 – John Strutt, 3rd Baron Rayleigh, British physicist, Nobel Prize laureate (b. 1842) July July 2 – Friedrich Soennecken, German entrepreneur and inventor of hole punch and ringbinder (b. 1848) July 10 Edward Abeles, American actor (b. 1869) Jean Navarre, French World War I fighter ace (b. 1895)