| 57631 | May.20 | Birth | 1894 – Chandrashekarendra Saraswati, Indian guru and scholar (d. 1994) |
| 57632 | May.20 | Birth | 1895 – R. J. Mitchell, English engineer, designed the Supermarine Spitfire and Supermarine S.6B (d. 1937) |
| 57633 | May.20 | Birth | 1897 – Diego Abad de Santillán, Spanish economist and author (d. 1983) |
| 57634 | May.20 | Birth | 1897 – Malcolm Nokes, English hammer and discus thrower (d. 1986) |
| 57635 | May.20 | Birth | 1898 – Eduard Ole, Estonian painter (d. 1995) |
| 57636 | May.20 | Birth | 1899 – Aleksandr Deyneka, Russian painter and sculptor (d. 1969) |
| 57637 | May.20 | Birth | 1899 – John Marshall Harlan II, American lawyer and jurist (d. 1971) |
| 57638 | May.20 | Birth | 1900 – Sumitranandan Pant, Indian poet and author (d. 1977) |
| 57639 | May.20 | Birth | 1901 – Max Euwe, Dutch chess player, mathematician, and author (d. 1981) |
| 57640 | May.20 | Birth | 1901 – Doris Fleeson, American journalist (d. 1970) |
| 57641 | May.20 | Birth | 1906 – Giuseppe Siri, Italian cardinal (d. 1989) |
| 57642 | May.20 | Birth | 1907 – Carl Mydans, American photographer and journalist (d. 2004) |
| 57643 | May.20 | Birth | 1908 – Louis Daquin, French actor and director (d. 1980) |
| 57644 | May.20 | Birth | 1908 – Francis Raymond Fosberg, American botanist and author (d. 1993) |
| 57645 | May.20 | Birth | 1908 – James Stewart, American actor and singer (d. 1997) |
| 57646 | May.20 | Birth | 1911 – Gardner Fox, American author (d. 1986) |
| 57647 | May.20 | Birth | 1911 – Annie M.G. Schmidt, Dutch author and playwright (d. 1995) |
| 57648 | May.20 | Birth | 1913 – Teodoro Fernández, Peruvian footballer (d. 1996) |
| 57649 | May.20 | Birth | 1913 – William Redington Hewlett, American engineer, co-founded Hewlett-Packard (d. 2001) |
| 57650 | May.20 | Birth | 1915 – Peter Copley, English actor (d. 2008) |
| 57651 | May.20 | Birth | 1915 – Moshe Dayan, Israeli general and politician, 5th Israeli Minister of Foreign Affairs (d. 1981) |
| 57652 | May.20 | Birth | 1916 – Owen Chadwick, English rugby player, historian, and academic (d. 2015) |
| 57653 | May.20 | Birth | 1916 – Alexey Maresyev, Russian soldier and pilot (d. 2001) |
| 57654 | May.20 | Birth | 1916 – Ondina Valla, Italian sprinter and hurdler (d. 2006) |
| 57655 | May.20 | Birth | 1917 – Tony Cliff, Israeli-English author and activist (d. 2000) |
| 57656 | May.20 | Birth | 1917 – Guy Favreau, Canadian lawyer, judge, and politician, 28th Canadian Minister of Justice (d. 1967) |
| 57657 | May.20 | Birth | 1917 – Bergur Sigurbjörnsson, Icelandic journalist and politician (d. 2005) |
| 57658 | May.20 | Birth | 1918 – Edward B. Lewis, American biologist, geneticist, and academic, Nobel Prize laureate (d. 2004) |
| 57659 | May.20 | Birth | 1919 – George Gobel, American actor and singer (d. 1991) |
| 57660 | May.20 | Birth | 1920 – John Cruickshank, Scottish lieutenant and banker, Victoria Cross recipient |