| 90001 | August 9 | Birth | 1867 – Evelina Haverfield, Scottish nurse and activist (d. 1920) |
| 90002 | August 9 | Birth | 1872 – Archduke Joseph August of Austria (d. 1962) |
| 90003 | August 9 | Birth | 1874 – Reynaldo Hahn, Venezuelan composer and conductor (d. 1947) |
| 90004 | August 9 | Birth | 1875 – Albert Ketèlbey, English pianist, composer, and conductor (d. 1959) |
| 90005 | August 9 | Birth | 1881 – Prince Antônio Gastão of Orléans-Braganza, Brazilian prince (d. 1918) |
| 90006 | August 9 | Birth | 1896 – Erich Hückel, German physicist and chemist (d. 1980) |
| 90007 | August 9 | Birth | 1896 – Jean Piaget, Swiss psychologist and philosopher (d. 1980) |
| 90008 | August 9 | Birth | 1899 – P. L. Travers, Australian-English author and actress (d. 1996) |
| 90009 | August 9 | Birth | 1901 – Charles Farrell, American actor and singer (d. 1990) |
| 90010 | August 9 | Birth | 1902 – Zino Francescatti, French violinist (d. 1991) |
| 90011 | August 9 | Birth | 1902 – Panteleimon Ponomarenko, Russian general and politician (d. 1984) |
| 90012 | August 9 | Birth | 1909 – Vinayaka Krishna Gokak, Indian scholar, author, and academic (d. 1992) |
| 90013 | August 9 | Birth | 1909 – Adam von Trott zu Solz, German lawyer and diplomat (d. 1944) |
| 90014 | August 9 | Birth | 1911 – William Alfred Fowler, American astronomer and astrophysicist, Nobel Laureate (d. 1996) |
| 90015 | August 9 | Birth | 1911 – Eddie Futch, American boxer and trainer (d. 2001) |
| 90016 | August 9 | Birth | 1911 – John McQuade, Northern Irish soldier, boxer, and politician (d. 1984) |
| 90017 | August 9 | Birth | 1913 – Wilbur Norman Christiansen, Australian astronomer and engineer (d. 2007) |
| 90018 | August 9 | Birth | 1914 – Ferenc Fricsay, Hungarian-Austrian conductor and director (d. 1963) |
| 90019 | August 9 | Birth | 1914 – Tove Jansson, Finnish author and illustrator (d. 2001) |
| 90020 | August 9 | Birth | 1914 – Joe Mercer, English footballer and manager (d. 1990) |
| 90021 | August 9 | Birth | 1915 – Mareta West, American astronomer and geologist (d. 1998) |
| 90022 | August 9 | Birth | 1918 – Kermit Beahan, American colonel (d. 1989) |
| 90023 | August 9 | Birth | 1918 – Giles Cooper, Irish soldier and playwright (d. 1966) |
| 90024 | August 9 | Birth | 1918 – Albert Seedman, American police officer (d. 2013) |
| 90025 | August 9 | Birth | 1919 – Joop den Uyl, Dutch journalist, economist, and politician, Deputy Prime Minister of the Netherlands (d. 1987) |
| 90026 | August 9 | Birth | 1919 – Ralph Houk, American baseball player and manager (d. 2010) |
| 90027 | August 9 | Birth | 1920 – Enzo Biagi, Italian journalist and author (d. 2007) |
| 90028 | August 9 | Birth | 1921 – Ernest Angley, American evangelist and author |
| 90029 | August 9 | Birth | 1921 – J. James Exon, American soldier and politician, 33rd Governor of Nebraska (d. 2005) |
| 90030 | August 9 | Birth | 1922 – Philip Larkin, English poet and author (d. 1985) |