- Sep 2 Felix Wolfes, German-American conductor, educator (New England Conservatory, 1948-68), and composer, born in Hannover, Germany (d. 1971)
Darius Milhaud (1892-1974)
Sep 4 French composer (Maximilien), born in Marseille, France
- Sep 5 Joseph Szigeti, Hungarian violinist (Violinist Notebook 1933), born in Budapest, Hungary (d. 1973)
- Sep 9 Bruno Stürmer, German conductor, composer and educator, born in Freiburg, Germany (d. 1958)
- Sep 17 Hendrik Andriessen, Dutch organist and composer (Ballade of Merel; Te Deum), born in Haarlem, Netherlands (d. 1981)