- Oct 1 A.K. Gopalan, Indian communist leader (d. 1977)
- Oct 1 Otto Robert Frisch, Austrian-born physicist (d. 1979)
- Oct 2 Dermot Boyle, Marshal of the Royal Air Force, born in Rathdowney, County Laois, Ireland (d. 1993)
- Oct 2 Godfrey Baseley, British radio executive, born in Alverchurch, Worchestershire, England (d. 1997)
Graham Greene (1904-1991)
Oct 2 English novelist (Brighton Rock, Our man in Havana, The Power and the Glory) and journalist, born in Berkhamsted, Hertfordshire
- Oct 2 Lal Bahadur Shastri, Indian politician and Prime Minister of India (1964-66), born in Mughalsarai, British India (d. 1966)
- Oct 3 Charles J. Pedersen, American organic biochemist (Nobel Prize in Chemistry, 1987), born in Busan, Korean Empire (d. 1989)
- Oct 4 Jimmy Ritz [Samuel Joachim], American vaudevillian, actor and comedian (Ritz Brothers - The Gorilla;, Hi'ya, Chum; Straight, Place and Show), born in Newark, New Jersey (d. 1985)
- Oct 4 Rene Cloke, British illustrator, born in Plymouth, England (d. 1995)
- Oct 5 George Chesterman Phillips, British naval officer (d. 1995)
- Oct 6 Horst Lange, German writer (The Long Lament), born in Liegnitz, Silesia (d. 1971)
Chuck Klein (1904-1958)
Oct 7 American Baseball Hall of Fame right fielder (Triple Crown 1933; MLB All-Star 1933, 34; NL MVP 1932; Philadelphia Phillies), born in Indianapolis, Indiana
- Oct 9 Carl Parrish, American composer, born in Plymouth, Pennsylvania (d. 1965)
- Oct 9 Johannes Karel Marie Ditto, Dutch dominican and broadcast chairman (KRO, 1938-45), born in Velsen, Netherlands (d. 1977)
- Oct 9 Wally Brown, American actor (Zombies on Broadway, Girl Rush), born in Malden, Massachusetts (d. 1961)
- Oct 12 Ding Ling, Chinese writer (The Sun Shines over the Sanggan River), born in Linli, Hunan, China (d. 1986)
- Oct 12 Lester Dent, American writer (Doc Savage), born in La Plata, Missouri (d. 1959)
- Oct 13 Jutta Hecker, German writer, born in Weimar (d. 2002)
- Oct 13 Wilfred Pickles, British actor (Billy Liar, Gay Dog), born in Halifax, Yorkshire, England (d. 1978)
- Oct 15 Julian Hodge, British financier and multi-millionaire (Hodge Group), born in Camberwell, London (d. 2004)
- Oct 16 Reginald Dixon, British theatre organist, born in Sheffield, Britain, (d. 1985)
- Oct 18 A. J. Liebling, American journalist (d. 1963)
- Oct 20 Anna Neagle, English actress (London Melody, Nurse Edith Cavell), born in London, England (d. 1986)
- Oct 20 Marian Nixon [Marja Nissinen], American silent and sound film actress (Hands Up!; Rebecca of Sunnybrook Farms; Winner Takes All), born in Superior, Wisconsin (d. 1983)
Tommy Douglas (1904-1986)
Oct 20 Canadian politician (Father of Medicare), born in Falkirk, Scotland
- Oct 21 Edmond [Moore] Hamilton, American sci-fi author (Danger Planet)
- Oct 21 Patrick Kavanagh, Irish poet (d. 1967)
- Oct 22 Constance Bennett, American actress (Easiest Way, Ladies in Love), born in NYC, New York (d. 1965)
- Oct 22 Paul Arma, Hungarian-French composer, born in Budapest (d. 1987)
- Oct 23 Harvey Penick, American golfer, coach, author (World Golf Hall of Fame), born in Austin, Texas (d. 1995)
Moss Hart (1904-1961)
Oct 24 American playwright (You Can't Take it With You, Act 1), born in The Bronx, New York
Denny Shute (1904-1974)
Oct 25 American golfer (British Open 1933, PGA C'ship 1936-37), born in Cleveland, Ohio
- Oct 27 Ernő Schwarz, Hungarian-American soccer forward (2 caps Hungary; Ferencváros, NY Giants, NY Americans) and coach (United States [men] 1953-56), born in Budapest, Hungary (d. 1974)
- Oct 28 Louis de Meester, Belgian pianist and classical and electronic music composer (The Great Temptation of St Anthony), born in Roeselare, Flanders, Belgium (d. 1987)
- Oct 30 Alfred Gradstein, Polish composer, born in Częstochowa, Russian Poland (now Poland) (d. 1954)
- Oct 30 Paul D. Stoop, American vice-admiral (WW II-Coral Sea), born in Zanesville, Ohio (d. 1995)
About October 1904
How Old? 118 years old
Generation: Greatest Generation
Leap Year: Yes