- Sep 1 Wols [Alfred Otto Wolfgang Schulze], German cartoonist and painter, dies at 38
- Sep 3 Robert Hernried, Austrian born American composer and conductor, dies at 67
- Sep 6 James W. Gerard, American jurist and diplomat, dies at 84
- Sep 6 Joe Falcaro, American bowler (National Match Game champion 1929-33), dies at 55
- Sep 7 John French Sloan, American painter and etcher, dies at 80
- Sep 7 María Montez [Vidal], Dominican actress known as The Queen of Technicolor (Cobra Woman, Arabian Nights), dies of heart seizure at 39
- Sep 8 Jürgen Stroop, SS General during World War II and commander of Nazi forces during the Warsaw Ghetto Uprising, executed by hanging for crimes against humanity at 56
- Sep 9 Cecil Gray, Scottish composer and music critic, dies at 56
- Sep 9 Gibson Gowland, British actor (Greed, Blind Husbands, The Phantom of the Opera), dies at 74
- Sep 10 Giuseppe Mulè, Italian composer, dies at 66
- Sep 14 Fritz Busch, German conductor, dies at 61
- Sep 15 Jacinto Guerrero, Spanish musician and composer, dies at 56
- Sep 16 Bill Klem, American Baseball HOF umpire (record 18 x World Series), dies at of a heart attack at 77
- Sep 17 Gelett Burgess, American humorist and author (The Purple Cow), dies at 85
- Sep 17 Jimmy Yancey, American boogie-woogie jazz and blues pianist, dies somewhere between age 50 and 57 - (birth year documentation uncertain)
- Sep 24 Georges Rency, Belgian poet and literature, dies at 75
- Sep 26 Hans Cloos, German geologist and pioneer in the study of granite tectonics (the deformation of crystalline rocks), dies at 65
- Sep 29 Bradley Barker, American silent actor and film director, dies at 68
- Sep 29 Thomas Cahill, American soccer coach and administrator (first coach US men's national team), dies at 86
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning