| 81811 | July 19 | Birth | 1920 – Richard Oriani, Salvadoran-American metallurgist and engineer (d. 2015) |
| 81812 | July 19 | Birth | 1921 – Harold Camping, American evangelist, author, radio host (d. 2013) |
| 81813 | July 19 | Birth | 1921 – André Moynet, French soldier, race car driver, and politician (d. 1993) |
| 81814 | July 19 | Birth | 1921 – Elizabeth Spencer, American author and playwright |
| 81815 | July 19 | Birth | 1921 – Rosalyn Sussman Yalow, American physicist and academic, Nobel Prize laureate (d. 2011) |
| 81816 | July 19 | Birth | 1922 – George McGovern, American lieutenant, historian, and politician (d. 2012) |
| 81817 | July 19 | Birth | 1923 – Theo Barker, English historian (d. 2001) |
| 81818 | July 19 | Birth | 1923 – Joseph Hansen, American author and poet (d. 2004) |
| 81819 | July 19 | Birth | 1923 – William A. Rusher, American lawyer and journalist (d. 2011) |
| 81820 | July 19 | Birth | 1923 – Lon Simmons, American baseball player and sportscaster (d. 2015) |
| 81821 | July 19 | Birth | 1924 – Stanley K. Hathaway, American soldier, lawyer, and politician, 40th United States Secretary of the Interior (d. 2005) |
| 81822 | July 19 | Birth | 1924 – Pat Hingle, American actor and producer (d. 2009) |
| 81823 | July 19 | Birth | 1924 – Arthur Rankin, Jr., American director, producer, and screenwriter (d. 2014) |
| 81824 | July 19 | Birth | 1925 – Sue Thompson, American singer |
| 81825 | July 19 | Birth | 1926 – Helen Gallagher, American actress, singer, and dancer |
| 81826 | July 19 | Birth | 1929 – Gaston Glock, Austrian engineer and businessman, co-founded Glock Ges.m.b.H. |
| 81827 | July 19 | Birth | 1930 – Darko Suvin, Croatian-Canadian critic and academic |
| 81828 | July 19 | Birth | 1932 – Buster Benton, American singer-songwriter and guitarist (d. 1996) |
| 81829 | July 19 | Birth | 1932 – Jan Lindblad, Swedish biologist and photographer (d. 1987) |
| 81830 | July 19 | Birth | 1934 – Francisco de Sá Carneiro, Portuguese lawyer and politician, 111th Prime Minister of Portugal (d. 1980) |
| 81831 | July 19 | Birth | 1935 – Nick Koback, American baseball player and golfer (d. 2015) |
| 81832 | July 19 | Birth | 1935 – Vasily Livanov, Russian actor and screenwriter |
| 81833 | July 19 | Birth | 1936 – David Colquhoun, English pharmacologist and academic |
| 81834 | July 19 | Birth | 1937 – George Hamilton IV, American singer-songwriter and guitarist (d. 2014) |
| 81835 | July 19 | Birth | 1938 – Richard Jordan, American actor (d. 1993) |
| 81836 | July 19 | Birth | 1938 – Jayant Narlikar, Indian astrophysicist and astronomer |
| 81837 | July 19 | Birth | 1938 – Tom Raworth, English poet and academic |
| 81838 | July 19 | Birth | 1940 – Dennis Cole, American actor (d. 2009) |
| 81839 | July 19 | Birth | 1941 – Vikki Carr, American singer and actress |
| 81840 | July 19 | Birth | 1941 – Neelie Kroes, Dutch politician and diplomat, European Commissioner for Digital Economy and Society |