| 31051 | March 20 | Birth | 1876 – Payne Whitney, American businessman and philanthropist (d. 1927) |
| 31052 | March 20 | Birth | 1879 – Maud Menten, Canadian physician and biochemist (d. 1960) |
| 31053 | March 20 | Birth | 1882 – René Coty, French lawyer and politician, 17th President of France (d. 1962) |
| 31054 | March 20 | Birth | 1882 – Harold Weber, American golfer (d. 1933) |
| 31055 | March 20 | Birth | 1884 – John Jensen, Australian public servant (d. 1970) |
| 31056 | March 20 | Birth | 1886 – Grace Brown, American murder victim (d. 1906) |
| 31057 | March 20 | Birth | 1888 – Amanda Clement, American baseball player, umpire, and educator (d. 1971) |
| 31058 | March 20 | Birth | 1890 – Beniamino Gigli, Italian tenor and actor (d. 1957) |
| 31059 | March 20 | Birth | 1890 – Lauritz Melchior, Danish-American tenor and actor (d. 1973) |
| 31060 | March 20 | Birth | 1895 – Fredric Wertham, German-American psychologist and author (d. 1981) |
| 31061 | March 20 | Birth | 1898 – Eduard Wiiralt, Estonian artist (d. 1954) |
| 31062 | March 20 | Birth | 1903 – Edgar Buchanan, American actor and singer (d. 1979) |
| 31063 | March 20 | Birth | 1904 – B. F. Skinner, American psychologist and author (d. 1990) |
| 31064 | March 20 | Birth | 1905 – Jean Galia, French rugby player and boxer (d. 1949) |
| 31065 | March 20 | Birth | 1906 – Abraham Beame, English-American account and politician, 104th Mayor of New York City (d. 2001) |
| 31066 | March 20 | Birth | 1906 – Nickolaus Hirschl, Austrian wrestler, discus thrower, and shot putter (d. 1991) |
| 31067 | March 20 | Birth | 1906 – Ozzie Nelson, American actor, singer, and bandleader (d. 1975) |
| 31068 | March 20 | Birth | 1907 – Hugh MacLennan, Canadian author and educator (d. 1990) |
| 31069 | March 20 | Birth | 1907 – Ruby Muhammad, American religious leader (d. 2011) |
| 31070 | March 20 | Birth | 1908 – Michael Redgrave, English actor and director (d. 1985) |
| 31071 | March 20 | Birth | 1910 – Erwin Blask, German hammer thrower (d. 1999) |
| 31072 | March 20 | Birth | 1911 – Alfonso García Robles, Mexican lawyer and diplomat, Nobel Prize laureate (d. 1991) |
| 31073 | March 20 | Birth | 1913 – Nikolai Stepulov, Russian-Estonian boxer (d. 1968) |
| 31074 | March 20 | Birth | 1914 – Wendell Corey, American actor and politician (d. 1968) |
| 31075 | March 20 | Birth | 1915 – Rudolf Kirchschläger, Austrian judge and politician, 8th President of Austria (d. 2000) |
| 31076 | March 20 | Birth | 1915 – Sviatoslav Richter, Ukrainian pianist and composer (d. 1997) |
| 31077 | March 20 | Birth | 1915 – Sister Rosetta Tharpe, American singer-songwriter and guitarist (d. 1973) |
| 31078 | March 20 | Birth | 1916 – Pierre Messmer, French lieutenant and politician, Prime Minister of France (d. 2007) |
| 31079 | March 20 | Birth | 1917 – Vera Lynn, English singer-songwriter and actress |
| 31080 | March 20 | Birth | 1918 – Jack Barry, American game show host and producer, co-founded Barry & Enright Productions (d. 1984) |