- Sep 1 Princess Alexandra of Edinburgh and Saxe-Coburg and Gotha (d. 1942)
- Sep 2 Werner von Blomberg, German minister of Reichswehr
- Sep 3 Dorothea Lambert Chambers, British tennis player (Wimbledon 1903-04, 06, 10-11, 13-14), born in Ealing, England (d. 1960)
- Sep 9 Adelaide Crapsey, American poet (d. 1914)
- Sep 9 Sergio Osmeña, 4th President of the Philippines (d. 1961)
- Sep 16 Karl Albiker, German sculptor (German Art, female nudes), born in Ühlingen-Birkendorf, Germany (d. 1961)
- Sep 17 Vincenzo Tommasini, Italian composer (Le donne de buon umore), born in Rome (d. 1950)
Upton Sinclair (1878-1968)
Sep 20 American author (The Jungle), born in Baltimore, Maryland
