| 85261 | July 28 | Birth | 1867 – Charles Dillon Perrine, American-Argentinian astronomer (d. 1951) |
| 85262 | July 28 | Birth | 1872 – Albert Sarraut, French journalist and politician, 106th Prime Minister of France (d. 1962) |
| 85263 | July 28 | Birth | 1874 – Ernst Cassirer, Polish-American philosopher and academic (d. 1945) |
| 85264 | July 28 | Birth | 1879 – Lucy Burns, American activist, co-founded the National Woman's Party (d. 1966) |
| 85265 | July 28 | Birth | 1879 – Stefan Filipkiewicz, Polish painter (d. 1944) |
| 85266 | July 28 | Birth | 1887 – Marcel Duchamp, French-American painter and sculptor (d. 1968) |
| 85267 | July 28 | Birth | 1887 – Willard Price, Canadian-American journalist and author (d. 1983) |
| 85268 | July 28 | Birth | 1893 – Rued Langgaard, Danish organist and composer (d. 1952) |
| 85269 | July 28 | Birth | 1896 – Barbara La Marr, American actress and screenwriter (d. 1926) |
| 85270 | July 28 | Birth | 1898 – Lawrence Gray, American actor (d. 1970) |
| 85271 | July 28 | Birth | 1900 – Catherine Dale Owen, American actress (d. 1965) |
| 85272 | July 28 | Birth | 1901 – Freddie Fitzsimmons, American baseball player, coach, and manager (d. 1979) |
| 85273 | July 28 | Birth | 1901 – Rudy Vallée, American singer, actor, and saxophonist (d. 1986) |
| 85274 | July 28 | Birth | 1902 – Albert Namatjira, Australian painter (d. 1959) |
| 85275 | July 28 | Birth | 1902 – Karl Popper, Austrian-English philosopher and academic (d. 1994) |
| 85276 | July 28 | Birth | 1907 – Earl Tupper, American inventor and businessman, founded Tupperware Brands (d. 1983) |
| 85277 | July 28 | Birth | 1909 – Aenne Burda German publisher (d. 2005) |
| 85278 | July 28 | Birth | 1909 – Malcolm Lowry, English author and poet (d. 1957) |
| 85279 | July 28 | Birth | 1914 – Carmen Dragon, American conductor and composer (d. 1984) |
| 85280 | July 28 | Birth | 1915 – Charles Hard Townes, American physicist and academic, Nobel Prize laureate (d. 2015) |
| 85281 | July 28 | Birth | 1915 – Dick Sprang, American illustrator (d. 2000) |
| 85282 | July 28 | Birth | 1916 – David Brown, American journalist and producer (d. 2010) |
| 85283 | July 28 | Birth | 1920 – Preben Mahrt, Danish actor (d. 1989) |
| 85284 | July 28 | Birth | 1920 – Andrew V. McLaglen, English-American director and producer (d. 2014) |
| 85285 | July 28 | Birth | 1922 – Jacques Piccard, Belgian-Swiss oceanographer and engineer (d. 2008) |
| 85286 | July 28 | Birth | 1923 – Ray Ellis, American conductor and producer (d. 2008) |
| 85287 | July 28 | Birth | 1924 – Luigi Musso, Italian race car driver (d. 1958) |
| 85288 | July 28 | Birth | 1924 – C. T. Vivian, American minister, author, and activist |
| 85289 | July 28 | Birth | 1925 – Baruch Samuel Blumberg, American physician and academic, Nobel Prize laureate (d. 2011) |
| 85290 | July 28 | Birth | 1926 – Charlie Biddle, American-Canadian bassist (d. 2003) |