– Thomas Adams, British urban planner (b. 1871) March 26 – Spyridon Louis, Greek Olympic athlete (b. 1873) March 27 Madeleine Astor, American survivor of the sinking of the RMS Titanic (b. 1893) Michael Joseph Savage, 23rd Prime Minister of New Zealand (b. 1872) March 30 – Sir George Egerton, British admiral (b. 1852) March 31 – Tinsley Lindley, English footballer (b. 1865) April April 1 – J. A. Hobson, English economist (b. 1858) April 5 Robert Maillart, Swiss civil engineer (b. 1872) Song Zheyuan, Chinese general of the Northwestern Army (b. 1885) April 7 – William Faversham, English actor (b. 1868) April 8 – Joaquin Mir Trinxet, Spanish artist (b. 1873) April 9 Mrs. Patrick Campbell, English theatre actress, producer (b. 1865) Henryk Minkiewicz, Polish general and politician (executed) (b. 1880) April 10 – Bernard Warburton-Lee, British naval officer, Victoria Cross recipient (killed in action) (b. 1895) April 18 – Florrie Forde, Australian-born music hall singer (b. 1875) April 21 – George Barnes, British Labour politician (b. 1859) April 26 – Carl Bosch, German chemist, Nobel Prize laureate (b. 1874) April 28 – Luisa Tetrazzini, Italian opera singer (b. 1871) April 30 – Henryk Dobrzański, Polish soldier, sportsman and resistance fighter (b. 1897) May May 2 – Ernest Joyce, English explorer (b. 1875) 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) May 15 – Menno ter Braak, Dutch writer (b. 1902) May 16 – Zhang Zizhong, general of the Chinese National Revolutionary Army (b. 1891) May 19 – Diego Mazquiarán, Spanish matador (b. 1895) May 20 – Verner von Heidenstam, Swedish writer, 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 (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, American stage actress (b. 1859) June June 7 James Hall, American actor (b. 1900) Hugh Rodman, American admiral (b. 1859) June 10 Marcus Garvey, Jamaican-born publisher, entrepreneur and black nationalist (b. 1887) Sir Thomas Hudson Beare, British engineer (b. 1859) June 11 – Alfred S. Alschuler, American architect (b.