Coco the Clown (1900-1974)
Oct 2 Russian-born British clown famous in the mid-20th century, born in Dvinsk, Russian Empire
- Oct 3 Jay Irving, American cartoonist (Draw Me a Laugh), born in New York City (d. 1970)
Thomas Wolfe (1900-1938)
Oct 3 American novelist (Look Homeward Angel), born in Asheville, North Carolina
Heinrich Himmler (1900-1945)
Oct 7 German Nazi and head of the Gestapo, born in Munich, Germany
- Oct 8 Geoffrey Jellicoe, English landscape architect (Shute House), born in London (d. 1996)
- Oct 8 Serge Chermayeff, Russian-British architect and designer, born in Grozny, Russia (d. 1996)
- Oct 8 Zeno Vancea, Romanian composer, born in Bocsa, Romania (d. 1990)
- Oct 9 Alastair Sim, Scottish actor (Christmas Carol, Stage Fright), born in Edinburgh, Scotland (d. 1976)
- Oct 9 Silvio Cator, Haitian athlete and long jumper (Olympic silver 1928), born in Cavaellon, Haiti (d. 1952)
Helen Hayes (1900-1993)
Oct 10 American actress (Caesar & Cleopatra, Happy Birthday), and 1st female EGOT (Emmy, Grammy, Oscar, and Tony Award winner), born in Washington, D.C.
- Oct 13 Gerald Marks, American songwriter ("All of Me"), born in Saginaw, Michigan (d. 1997)
- Oct 13 Marius-François Gaillard, French pianist (DeBussy), conductor and composer (La passion noire), born in Paris (d. 1973)
- Oct 14 Eddie McLeod, New Zealand cricketer (played in NZ's 2nd-ever Test 1930), born in Auckland, New Zealand (d. 1989)
- Oct 15 Fritz Feld, German actor (Jack Benny Show, At the Circus, Errand Boy, Promises Promises), born in Berlin, Germany (d. 1993)
- Oct 15 Mervyn LeRoy, American movie producer (Devil at 4 O'Clock), born in San Francisco, California (d. 1987)
- Oct 16 Edward Ardizzone, artist and illustrator (d. 1979)
- Oct 16 Goose Goslin, American Baseball HOF left fielder (World Series 1924 Washington Sens, 1935 Detroit Tigers; AL batting champion 1928; MLB All Star 1936), born in Salem, New Jersey (d. 1971)
- Oct 16 Lloyd Corrigan, American actor (Papa Dodger, The Manchurian Candidate), born in San Francisco, California (d. 1969)
- Oct 16 Primo Conti, Italian painter (d. 1988)
- Oct 17 Jean Arthur [Gladys Greene], American stage, silent and sound screen actress (Shane; Mr. Smith Goes to Washington; Mr. Deeds Goes to Town), born in Plattsburgh, New York (d. 1991)
Bill Ponsford (1900-1991)
Oct 19 Australian cricket batsman (29 Tests @ 48 22, 7 x 100s; 1st-class 13,819 runs @ 65.18; Victoria), born in Melbourne, Australia
- Oct 19 Erna Berger, German lyric soprano, and voice teacher, born in Dresden, Germany (d. 1990)
- Oct 19 Roy Worters, Canadian Hockey HOF goaltender (Hart Memorial Trophy 1929; Vezina Trophy 1931; NY Americans), born in Toronto, Ontario (d. 1957)
- Oct 19 Teodoro Valcárcel, Peruvian classical composer, born in Puno, Peru (d. 1942)
- Oct 20 Rodolfo Halffter, Spanish composer, and music critic, born in Madrid, Spain (d. 1987)
- Oct 20 Wayne Morse, American politician (Senator-(R&D)-Oregon 1945-69), born in Madison, Wisconsin (d. 1974)
- Oct 22 Edward Stettinius Jr. 48th US Secretary of State (1944-45) and diplomat, born in Chicago, Illinois (d. 1949)
- Oct 22 James Hall, American actor (Hell's Angels, Four Sons), born in Dallas, Texas (d. 1940)
- Oct 23 Douglas Jardine, English cricket batsman (22 Tests, 1 x 100, 10 x 50, HS 127; England's Bodyline Series captain; Oxford Uni CC, Surrey CCC, MCC), born in Bombay, British India (d. 1958)
- Oct 24 Elizabeth Hill, Russian-English teacher of Salvonic languages, born in St. Petersburg, Russia (d. 1996)
- Oct 24 Karl Ottó Runólfsson, Icelandic composer, born in Reykjavik, Iceland (d. 1970)
- Oct 26 Ibrahim Abboud, 1st President and 4th Prime Minister of Sudan (1958-64), born in Suakin, Sudan (d. 1983)
- Oct 26 Karin Boye, writer (Kallocain), born in Gothenburg, Sweden (d. 1941)
- Oct 26 Mark Sandrich [Goldstein], American film director, writer and producer (The Gay Divorcee; Top Hat; Holiday Inn), born in New York City (d. 1945)
Ragnar Granit (1900-1991)
Oct 30 Finnish neuroscientist and physiologist (Nobel 1967 - discoveries concerning the primary physiological and chemical visual processes in the eye), born in Helsinge, Finland
- Oct 31 Cal Hubbard, American Baseball HOF umpire (AL 1936-51) and Pro/College Football HOF tackle (4 × NFL C'ship 1927, 29–31; 4 × First-team All-Pro; NY Giants, GB Packers), born in Keytesville, Missouri (d. 1977)
About October 1900
How Old? 123 years old
Generation: Lost Generation
Leap Year: No