- Oct 1 Everett Sloane, American actor (Patsy, Citizen Kane, Enforcer), born in NYC, New York (d. 1965)
- Oct 1 Samuel Yorty, (Mayor-LA), born in Lincoln, Nebraska
- Oct 4 James B Pritchard, American theologist/archaeologist
- Oct 4 Noel Chiboust, trumpeter/Sax
- Oct 7 Shura Cherkassky, pianist
- Oct 7 Anni Blomqvist, Finnish novelist (d. 1990)
- Oct 7 Erastus Corning 2nd, American politician, 72nd Mayor of Albany, New York (d. 1983)
- Oct 8 Bill Hewitt, American professional football player (Chicago Bears, Philadelphia Eagles), born in Bay City, Michigan (d. 1947)
- Oct 10 Florida Friebus, American actress (Dobie Gillis' mom, Bob Newhart Show), born in Auburndale, Massachusetts (d. 1988)
- Oct 10 Luc van Brabant, Flemish writer/erotic poet
- Oct 10 Robert F. Boyle, American production designer and art director
- Oct 13 Herblock, [Herbert L Block], Roosevelt, Utah, political cartoonist
- Oct 14 Bernd Rosemeyer, German auto racer (Indy 500)
- Oct 14 Kalervo Tuukkanen, composer
- Oct 14 Dorothy Kingsley, American screenwriter (d. 1996)
- Oct 15 Robert Trout, Wake County NC, newscaster (ABC)
- Oct 17 Crozy [William] Cole, US jazz drummer
- Oct 18 Norberto Bobbio, Italian philosopher and legal theorist (d. 2004)
- Oct 19 Robert Beatty, Canadian actor (2001: A Space Odyssey, Where Eagles Dare), born in Hamilton, Ontario, Canada (d. 1992)
- Oct 19 Marguerite Perey, French physicist (d. 1975)
- Oct 20 Monique Hare, French pianist
- Oct 20 Sugiyama Yasushi, Japanese painter (d. 1993)
- Oct 22 Litz Pisk, movement teacher
- Oct 23 Zellig S. Harris, Russian-American linguist, born in Balta, Russia (d. 1992)
- Oct 24 Bill Carr, American athlete (d. 1966)
- Oct 25 Philleo Nash, US Bureau of Indian Affairs (1961-67), born in Wisconsin Rapids, Wisconsin (1961-67)
- Oct 25 Whitner "Whit" Bissell, American actor (Time Machine, Soylent Green, The Magnificent Seven), born in NYC, New York (d. 1996)
- Oct 28 Adolfs Skulte, composer
- Oct 28 Claude Bourdet, human rights activist/journalist
- Oct 28 Francis Bacon, Irish painter (Study for a Pope)
- Oct 29 Douglass Montgomery, American actor (Forbidden, Harmony Lane), born in Los Angeles, California (d. 1966)
- Oct 30 Homi J. Bhabha, Indian physicist (d. 1966)