(b. 1861) May 7 – Ernst A. Lehmann, German captain of the Hindenburg (b. 1886) May 9 Harry Barton, American architect (b. 1876) Maurice Conner, Canadian politician (b. 1868) May 10 – Sir James Blindell, British politician (b. 1884) May 11 Afonso Costa, Portuguese lawyer, professor, politician and 3-time Prime Minister of Portugal (b. 1871) Ellen Hansell, American tennis champion (b. 1869) May 15 – Percy Lee Gassaway, American politician (b. 1885) May 23 – John D. Rockefeller, American industrialist, philanthropist (b. 1839) May 24 Luis F. Álvarez, Spanish physician (b. 1853) Francis Bird, Australian architect (b. 1845) May 25 – Henry Ossawa Tanner, American artist (b. 1859) May 26 – Bertha May Crawford, Canadian opera singer (b. 1886) May 28 – Alfred Adler, Austrian psychologist (b. 1870) May 29 – Lizardo García, 17th President of Ecuador (b. 1844) June June 2 – Louis Vierne, French composer (b. 1870) June 3 Hugo Hammarskjöld, Swedish public servant, politician (b. 1845) Emilio Mola, Spanish Nationalist commander (plane crash) (b. 1887) June 4 Fernand Cabrol, French theologian (b. 1855) Keke Geladze, mother of Joseph Stalin, Leader of the Soviet Union (b. 1858) June 7 – Jean Harlow, American actress (b. 1911) June 10 Jane Foss Barff, American activist (b. 1863) Sir Robert Borden, Canadian lawyer, politician and 8th Prime Minister of Canada (b. 1854) Malcolm Williams, American actor (b. 1870) June 12 – Mikhail Tukhachevsky, Soviet Army officer, Red Army commander-in-chief (executed) (b. 1893) June 16 – Alexander Chervyakov, Leader of the Soviet Union (b. 1892) June 18 Pierre Bodard, French painter (b. 1881) Gaston Doumergue, 60th Prime Minister of France, 13th President of France (b. 1863) June 19 – J. M. Barrie, British novelist, dramatist (b. 1860) June 20 – Andreu Nin Pérez, Spanish politician (b. 1892) June 25 Colin Clive, British actor (b. 1900) Marta Cunningham, American opera singer (b. 1869) June 26 – Minoru Murata, Japanese actor, director and screenwriter (b. 1894) June 27 – Sandro Akhmeteli, Soviet director (b. 1866) June 28 – Max Adler, Austrian Marxist theorist (b. 1873) July July 1 Ilya Garkavyi, Soviet general (b. 1888) Matvei Vasilenko, Soviet komkor (b. 1888) July 2 – Amelia Earhart, American aviator (missing on this date) (b. 1897) July 3 – Boris Gorbachyov, Soviet general (b. 1892) July 6 Bohdan Ihor Antonych, Soviet poet (b. 1909) Ernesto Badini, Italian opera singer (b. 1876) July 7 – Åke Hammarskjöld, Swedish