Editing 1940 (section)

===May===
[[File:Prinz Wilhelm und Prinz Lous Ferdinand von Preussen.jpg|thumb|right|100px|[[Prince Wilhelm of Prussia (1906–1940)|Prince Wilhelm of Prussia]]]]
[[File:Hessenin prnssi Friedrich Karl - Prince Frederick Charles of Hesse.jpg|thumb|right|100px|[[Prince Frederick Charles of Hesse]]]]
*[[May 2]] &ndash; [[Ernest Joyce]], English explorer (b. 1875)<ref>[[Kelly Tyler-Lewis|Tyler-Lewis, Kelly]]: ''The Lost Men'' Bloomsbury Publishing, London, p. 263. 2007 {{ISBN|978-0-7475-7972-4}}</ref>
*[[May 7]] – [[George Lansbury]], British Labour politician (b. 1859)
*[[May 11]] – [[Chujiro Hayashi]], Japanese Reiki Master (b. 1880)
*[[May 14]] 
** [[Emma Goldman]], Lithuanian-born anarchist (b. [[1869]])
** [[Menno ter Braak]], Dutch writer (b. [[1902]])
*[[May 16]] – [[Zhang Zizhong]], general of the Chinese [[National Revolutionary Army]] (b. [[1891]])
*[[May 20]] – [[Verner von Heidenstam]], Swedish writer, [[Nobel Prize in Literature|Nobel Prize]] laureate (b. [[1859]])
*[[May 24]] – [[Louis Fles]], Dutch businessman, activist and author (b. [[1872]])
*[[May 25]] – [[Joe De Grasse]], Canadian film director (b. [[1873]])
*[[May 26]] – [[Prince Wilhelm of Prussia (1906–1940)|Prince Wilhelm of Prussia]] (b. [[1906]])
*[[May 27]] – [[Bolesław Roja]], Polish general (executed) (b. [[1876]])
*[[May 28]]
**[[Prince Frederick Charles of Hesse]] (b. [[1868]])
**[[Walter Connolly]], American actor (b. [[1887]])
*[[May 29]] – [[Mary Anderson (actress, born 1859)|Mary Anderson]], American stage actress (b. [[1859]])