- Sep 1 Henri Bourassa, French Canadian politician and publisher (d. 1952)
- Sep 6 Heinrich Häberlin, Swiss politician, member of the Federal Council, born in Weinfelden, Switzerland (d. 1947)
- Sep 9 Mary Austin, Ill, feminist/nature writer (Land of Little Rain)
- Sep 15 Dirk Berend Nanninga, Dutch painter (d. 1954)
- Sep 17 James Alexander Calder, Canadian politician, born in Oxford County, Ontario (d. 1956)
- Sep 26 Henry F. Gilbert, American composer (The Dance in Place Congo), and musicologist, born in Somerville, Massachusetts (d. 1928)