| 100891 | September 5 | Birth | 1897 – Arthur Nielsen, American market analyst, founded ACNielsen (d. 1980) |
| 100892 | September 5 | Birth | 1897 – Ella Schuler, American super-centenarian (d. 2011) |
| 100893 | September 5 | Birth | 1899 – Humphrey Cobb, American author and screenwriter (d. 1944) |
| 100894 | September 5 | Birth | 1899 – Helen Creighton, Canadian author and educator (d. 1989) |
| 100895 | September 5 | Birth | 1901 – Florence Eldridge, American actress (d. 1988) |
| 100896 | September 5 | Birth | 1901 – Mario Scelba, Italian politician, 33rd Prime Minister of Italy (d. 1991) |
| 100897 | September 5 | Birth | 1902 – Jean Dalrymple, American playwright, producer, manager, and publicist (d. 1998) |
| 100898 | September 5 | Birth | 1902 – Darryl F. Zanuck, American actor, director, producer, and screenwriter (d. 1979) |
| 100899 | September 5 | Birth | 1903 – Gloria Holden, English-American actress (d. 1991) |
| 100900 | September 5 | Birth | 1904 – Vera Bradford, Australian pianist and educator (d. 2004) |
| 100901 | September 5 | Birth | 1905 – Maurice Challe, French general (d. 1979) |
| 100902 | September 5 | Birth | 1905 – Arthur Koestler, Hungarian-English journalist and author (d. 1983) |
| 100903 | September 5 | Birth | 1905 – Justiniano Montano, Filipino lawyer and politician (d. 2005) |
| 100904 | September 5 | Birth | 1906 – Ralston Crawford, American painter, lithographer, and photographer (d. 1978) |
| 100905 | September 5 | Birth | 1907 – Sunnyland Slim, American singer-songwriter and pianist (d. 1995) |
| 100906 | September 5 | Birth | 1907 – Layne Britton, American makeup artist and actor (d. 1993) |
| 100907 | September 5 | Birth | 1908 – Josué de Castro, Brazilian physician, geographer, and activist (d. 1973) |
| 100908 | September 5 | Birth | 1908 – Joaquín Nin-Culmell, German-American pianist and composer (d. 2004) |
| 100909 | September 5 | Birth | 1909 – Hans Carste, German pianist and conductor (d. 1971) |
| 100910 | September 5 | Birth | 1909 – Bernard Delfont, Russian-English talent manager (d. 1994) |
| 100911 | September 5 | Birth | 1909 – Archie Jackson, Scottish-Australian cricketer (d. 1933) |
| 100912 | September 5 | Birth | 1910 – Leila Mackinlay, English author (d. 1996) |
| 100913 | September 5 | Birth | 1910 – Phiroze Palia, Indian cricketer (d. 1981) |
| 100914 | September 5 | Birth | 1912 – John Cage, American composer and theorist (d. 1992) |
| 100915 | September 5 | Birth | 1912 – Kristina Söderbaum, Swedish-German actress and photographer (d. 2001) |
| 100916 | September 5 | Birth | 1912 – Frank Thomas, American voice actor, animator, and screenwriter (d. 2004) |
| 100917 | September 5 | Birth | 1913 – Conny Stuart, Dutch actress and singer (d. 2010) |
| 100918 | September 5 | Birth | 1914 – Stuart Freeborn, English make up artist (d. 2013) |
| 100919 | September 5 | Birth | 1914 – Gail Kubik, American violinist, composer, and educator (d. 1984) |
| 100920 | September 5 | Birth | 1914 – Nicanor Parra, Chilean physicist, mathematician, and poet |