- Sep 1 Andrija Štampar, Croatian physician (d. 1958)
- Sep 4 Oskar Schlemmer, German painter, sculptor and choreographer (Triadisches Ballett), born in Stuttgart, German Empire (d. 1943)
- Sep 5 Sarvepalli Radhakrishnan, Indian philosopher and leader, Second President of India (1962-67), born in Thiruttani, British India (d. 1975)
Joseph P. Kennedy (1888-1969)
Sep 6 American businessman, diplomat and father of JFK, RFK and Teddy, born in Boston, Massachusetts
- Sep 6 Red Faber, American Baseball HOF pitcher (World Series 1917; AL ERA leader 1921, 22; Chicago White Sox 1914-33), born in Cascade, Iowa (d. 1976)
- Sep 8 Louis Zimmer, Flemish astronomer and clockmaker (Jubelklok/Wonder Clock), born in Lier, Belgium (d. 1970)
- Sep 12 Maurice Chevalier, French actor and singer ("Thank Heaven For Little Girls"), born in Paris (d. 1972)
- Sep 15 Antonio Ascari, Italian racing driver, born in Bonferraro, Italy (d. 1925)
- Sep 16 Almira Sessions, American actress (Oklahoma Annie), born in Washington, D.C. (d. 1974)
W. O. Bentley (1888-1971)
Sep 16 English engineer and motoring pioneer who founded Bentley Motors Limited, born in London
- Sep 17 Michiyo Tsujimura, Japanese agricultural scientist and biochemist (components of green tea), born in Saitama Prefecture, Japan (d. 1969)
- Sep 18 Grey Owl [Archibald Belaney], Canadian pioneering conservationist (who pretended to be part Native American), born in Hastings, England (d. 1938) [1]
- Sep 19 James Waddell Alexander II, American mathematician and topologist, born in Sea Bright, New Jersey (d. 1971)
- Sep 19 Porter Hall, American actor (Half-Breed, Double Indemnity), born in Cincinnati, Ohio (d. 1953)
- Sep 22 Sophia "Sophie" Hermse, actress (But a Dream, Vorstenschool), (d. 1975)
- Sep 23 Gerhard Kittel, German anti-semitic theologist (Die Oden Salomons), born in Breslau, Germany (d. 1948)
- Sep 26 J. Frank Dobie, American folklorist and newspaper columnist, born in Live Oak County, Texas (d. 1964)
T. S. Eliot (1888-1965)
Sep 26 American poet (The Waste Land), dramatist and critic (Nobel Prize 1948), born in St Louis Missouri,
- Sep 28 Herman [H. C.] McNeile [pen name Sapper), English soldier and writer (Bulldog Drummond), born in Bodmin, England (d. 1937)