- Oct 5 Frederic Lewy, German neurologist (b. 1885)
Willis Carrier
Oct 7 Willis Carrier, American engineer (developed modern air conditioning), dies at 73
Willis Carrier
George Hainsworth
Oct 9 George Hainsworth, Canadian ice hockey goaltender (first NHL goaltender to record 20 shutouts in one season; Montreal Canadiens), dies in a car accident at 55
George Hainsworth
- Oct 13 Ernest Haycox, American writer (b. 1899)
- Oct 19 Edna St Vincent Millay, American poet/dramatist/feminist (Harp Weaver-Pulitzer Prize), dies at 58
- Oct 20 Henry L. Stimson, American statesman (46th United States Secretary of State), dies at 83
- Oct 23 Al Jolson [Asa Yoelson], American-Lithuanian jazz singer and silent actor (Mamie, Swanee), dies at 64
- Oct 29 Gustav V, king of Sweden, dies at 92
- Oct 31 Carel T Scharten, Dutch poet and writer (Lost Paradise), dies at 72
- Oct 31 Jozef C Bittremieux, Flemish theologist, dies at 72