- Sep 6 Rodolfo Lenz, German-Chilian linguist (El Papiamento), born in Halle, Province of Saxony, Kingdom of Prussia (now Germany) (d. 1938)
- Sep 8 Gustavo Campa, Mexican composer, born in Mexico City (d. 1934)
- Sep 13 Arthur Henderson, British Labour minister (Nobel Peace Prize 1934), born in Glasgow, Scotland (d. 1935)
- Sep 13 Willis Cuttell, English cricket spin bowler (2 Tests, 6 wickets; Lancashire CCC), born in Sheffield, England (d. 1929)
- Sep 15 Horatio Parker, American organist and composer, born in Auburndale, Massachusetts (d. 1919)
- Sep 16 John Trumble, Australian cricket all-rounder (7 Tests, 10 wickets; brother of Hugh), born in Melbourne, Australia (d. 1944)
- Sep 18 Hermann Kutter, Swiss Protestant theologian (founder of Christian Socialism in Switzerland), born in Bern, Switzerland (d. 1931)
- Sep 21 John Bunny, American film comedian, born in New York City (d. 1915)
- Sep 23 Alexandre Yersin, Swiss French bacteriologist (discovered bubonic plague bacillus), born in Aubonne, Switzerland (d. 1943)
- Sep 23 Mary Church Terrell, American educator and civil rights activist (co-founder and President National Association of Colored Women), born in Memphis, Tennessee (d. 1954)
- Sep 28 Carlos I, King of Portugal (1889-1908), born in Ajuda National Palace, Lisbon (d. 1908)
- Sep 29 Franz Zorell, German lexicographer and exegete (Hebrew Latin Dictionary), born in Ravensburg (d. 1947)
- Sep 29 Hugo Haase, German socialist politician (SPD, USPD) and co-chair of the Council of the People's Deputies (1918-19), born in Allenstein, East Prussia (d. 1919)
Reinhard Scheer (1863-1928)
Sep 30 German admiral and commander of the High Seas Fleet in World War I (Battle of Jutland), born in Obernkirchen, Electorate of Hesse