- Sep 1 Hubert Lampo, Flemish writer/essayist (Coming of Joachim Stiller)
- Sep 1 Richard Farnsworth, American actor (Misery, Havana, Sylvester), born in Los Angeles, California (d. 2000)
- Sep 4 Clemar Bucci, Argentine racing driver, born in Zenón Pereyra, Santa Fe, Argentina (d. 2011)
- Sep 4 Craig Claiborne, American food columnist (NY Times Cookbook), born in Sunflower, Mississippi (d. 2000)
- Sep 4 Harold "Shot" Jackson, American country dobro player, and pedal steel guitarist (Roy Acuff), and guitar designer and builder (Sho-Bud), born in Wilmington, North Carolina (d. 1991)
- Sep 4 Teddy Johnson, British singer (Pearl Carr & Teddy Johnson), born in Surbiton, Surrey (d. 2018)
- Sep 5 Fons Rademakers, Dutch director (Assault) and actor (Daughter of Darkness), born in Roosendaal, Netherlands (d. 2007)
- Sep 5 Margaretha D. Ferguson-Wigerink, Dutch author (Anna & her Father), born in Arnhem, Netherlands (d. 1992)
- Sep 5 Peter Racine Fricker, British composer, born in London (d. 1990)
- Sep 7 Al Caiola, American guitarist (Bonzanza theme), born in Jersey City (d. 2016)
- Sep 7 Harri Webb, Welsh poet and nationalist, born in Swansea, Wales (d. 1994)
- Sep 9 Feng Kang, Chinese mathematician (d. 1993)
- Sep 9 Michael Aldridge, British actor (Last of the Summer Wine; Murder in Cathedral), born in Glastonbury, England (d. 1994)
- Sep 9 Robert Wood Johnson III, American philanthropist (d. 1970)
- Sep 10 Egbert van Paridon, Dutch actor and director (Flodder, The Assault), born in Amsterdam, Noord-Holland, Netherlands (d. 2011)
- Sep 10 Fabio Taglioni, Italian motorcycle engineer (Ducati), born in Lugo, Italy (d. 2001)
- Sep 12 Irene Dailey, American actress (Another World, Grissom Gang), born in NYC, New York (d. 2008)
- Sep 12 Jan W. Schulte Nordholt, Dutch poet and historian (Blossoming Stone), born in Zwolle, Netherlands (d. 1995)
- Sep 13 Carole Mathews [Jean Deifel], American actress (The Californians, Swamp Women), born in Montgomery, Illinois (d. 2014)
- Sep 14 Alberto Calderón, Argentine mathematician, born in Mendoza, Argentina (d. 1998)
- Sep 14 Bud Palmer, American basketball player (NY Knicks) and sportscaster, born in Hollywood, California (d. 2013)
- Sep 14 Lawrence Klein, American economist who created computer models to forecast economic trends (1980 Nobel Memorial Prize in Economic Sciences), born in Omaha, Nebraska (d. 2013)
- Sep 14 Mario Benedetti, Uruguayan journalist, novelist and poet, born in Paso de los Toros, Uruguay (d. 2009)
- Sep 15 Dave Garcia, American MLB manager (California Angels, Cleveland Indians), born in San Diego, California (d. 2018)
- Sep 16 Hannie Schaft, Dutch communist resistance fighter known as the "Girl with red hair", born in Haarlem, Netherlands (d. 1945)
- Sep 16 John MacKenzie, Scottish-Canadian bagpiper and pipe-major, born in Edinburgh, Scotland (d. 1996) [1]
- Sep 16 Sheila Quinn, British nurse and adviser (British Red Cross), born in Blackpool, England (d. 2016)
- Sep 17 Dinah Sheridan, British actress (Genevieve, The Railway Children, Don't Wait Up), born in Hampstead, London (d. 2012)
- Sep 17 Marjorie Holt, American politician (Member of the U.S. House of Representatives from Maryland), born in Birmingham, Alabama (d. 2018)
- Sep 18 Jack Warden [John Lebzelter Jr], American character actor (Shampoo, Heaven Can Wait, Brian's Song), born in Newark, New Jersey (d. 2006)
- Sep 19 Karen Khachaturian, Russian composer, born in Moscow, Russia (d. 2011)
- Sep 19 Roger Angell, American literary editor and baseball journalist (The New Yorker), born in Manhattan, NYC (d. 2022)
- Sep 20 Bill DeArango, American jazz guitarist (Charlie Ventura; Eddie "Lockjaw" Davis; "Slam" Stewart), born in Cleveland, Ohio (d. 2005)
- Sep 20 Frances Heflin, American actress (All My Children, The Skin of Our Teeth), born in Oklahoma City, Oklahoma (d. 1994)
- Sep 20 Jay Ward, American cartoonist (Rocky & his Friends, Bullwinkle), born in Berkeley, California (d. 1989)
- Sep 22 Anders Lassen, Danish military officer (posthumously awarded Britain's Victoria Cross), born in Copenhagen, Denmark (d. 1945)
- Sep 22 Bob Lemon, American Baseball Hall of Fame pitcher (MLB All-Star 1948–54; World Series 1948; no-hitter 1948; Cleveland Indians) and manager (KC Royals, Chicago White Sox; World Series NY Yankees 1978), born in San Bernardino, California (d. 2000)
- Sep 23 Alexander Arutiunian [Harut'unyan], Soviet Armenian classical pianist and composer (Trumpet Concerto), born in Yerevan, First Republic of Armenia (d. 2012)
- Sep 23 Gerard W Taylor, South African/British surgeon
- Sep 23 Jiri Jaroch, Czech composer, born in Smilkov (d. 1986)
- Sep 23 Mickey Rooney, American Emmy award-winning actor (Boys Town, The Black Stallion), born in Brooklyn, New York (d. 2014)
- Sep 25 Sergei Bondarchuk, Soviet director (Destiny of a Man, War and Peace), born in Belozerka, Ukraine (d. 1994)
- Sep 27 J K Gill, president (Saatchi & Saatchi)
- Sep 27 William Conrad [John Cann], American actor (The Killers, Bullwinkle Show, Cannon), born in Louisville, Kentucky (d. 1994)
- Sep 29 Peter D. Mitchell, English chemist, (1978 Nobel Prize for Chemistry), born in Mitcham, England (d. 1992)
- Sep 29 Tillman Franks, American country music bassist, songwriter and artist manager (Webb Pierce), born in Stamps, Arkansas (d. 2006)
- Sep 29 Václav Neummann, Czech conductor and musician, born in Prague, Czechoslovakia (d. 1995)
- Sep 30 Aldo Parisot, Brazilian-American concert cellist and educator (Yale School of Music, 1958-2018), born in Natal, Brazil (d. 2018)
- Sep 30 Ghazar Saryan, Armenian composer (Symphonic Panels on motifs by Saryan; Day of Peace), and educator (Komitas State Conservatory, 1960-86), born in Rostov-on-Don, Russia (d. 1998)
About September 1920
How Old? 102 years old
Generation: Greatest Generation
Leap Year: Yes