- Sep 4 Bob Hilliard and Carl Sigman's musical revue "Angel in the Wings" closes at Coronet Theater, NYC, after 308 performances
- Sep 6 Robert Stolz and Robert Sour's musical "Mr Strauss Goes to Boston" opens at Century Theater, NYC; runs for 12 performances
- Sep 9 "Hilarities (of 1949)" opens at Adelphi Theater NYC for 14 performances
- Sep 15 Musical revue "Small Wonder", starring Tom Ewell, opens at Coronet Theater, NYC; runs for 134 performances
- Sep 16 "Heaven on Earth" opens at Century Theater NYC for 12 performances
- Sep 16 Robert Stolz and Robert Sour's musical "Mr Strauss Goes to Boston" closes at Century Theater, NYC after 12 performances
- Sep 18 "Hilarities (of 1949)" closes at Adelphi Theater NYC after 14 performances
- Sep 20 Heitor Villa-Lobos' folk operetta "Magdalena" opens at Ziegfeld Theater, NYC; runs for 88 performances
- Sep 25 "Heaven on Earth" closes at Century Theater NYC after 12 performances
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