- Sep 2 Ernie Bromley, Australian cricket batsman (2 Tests; first Western Australian to play Test cricket for Australia), born in Fremantle, Western Australia (d. 1967)
- Sep 2 Johan Daisne [Herman Thiery], Belgian writer (magic realism)
- Sep 4 Alexander Liberman, Russian-American magazine editor, painter and photographer (639), born in Kiev, Russian Empire (d. 1999)
- Sep 5 Frank Thomas, American animator, born in Fresno, California (d. 2004)
- Sep 5 John Cage, American composer (Imaginary Landscape No 1/O'O), born in Los Angeles, California (d. 1992)
- Sep 5 Kristina Söderbaum, German actress and photographer, born in Stockholm, Sweden (d. 2001)
- Sep 6 Stephen Murray, English actor (Alice in Wonderland), born in Partney, England (d. 1983)
- Sep 6 Vince DiMaggio, American baseball center fielder (MLB All Star 1943-44; Pittsburgh Pirates), born in Martinez, California (d. 1986)
- Sep 6 Wayne Barlow, American composer, born in Elyria, Ohio (d. 1996)
- Sep 7 David Packard, American electronic engineer and businessman, born in Pueblo, Colorado (d. 1996)
- Sep 8 Alexander Mackendrick, American-born Scottish director (Man in the White Suit, Mandy), born in Boston, Massachusetts (d. 1993)
- Sep 8 Alfio Grasso, Italian jazz guitarist and composer, born in Lentini, Sicily, Italy (d. 1962)
- Sep 8 Leo Cherne, American economist and commentator (All Star News), born in NYC, New York (d. 1999)
- Sep 10 Mary Walter, Filipino actress (Shake, Rattle and Roll, Tatlo, Dalawa, Isa), born in Sorsogon, Philippine Islands (d. 1993)
- Sep 10 William Oliver Everson, American poet, born in Sacramento, California (d. 1994)
- Sep 11 Derek Sealy, West Indian cricket batsman (11 Tests; youngest West Indian Test player 17:122), born in Collymore Rock, Saint Michael, Barbados (d. 1982)
- Sep 13 Reta Shaw, American actress (Ghost & Mrs Muir, Mary Poppins, Picnic), born in South Paris, Maine (d. 1982)
- Sep 15 Gisela Hernández [Gonzalo], Cuban composer (Diálogo), and music educator, born in Cardenas, Cuba (d. 1971)
- Sep 15 Ismail Yasseen, Egyptian comedian and actor (Isamil Yassine as Tarzan, Ibn Hamidu), born in Suez, Egypt (d. 1972)
- Sep 16 Jerry Wald, American producer (Mildred Pierce, Johnny Belinda), born in NYC, New York (d. 1962)
- Sep 17 Irena Kwiatkowska, Polish actress and comedienne (Siedem Kotów, Kabaret Starszych Panów), born in Warsaw, Poland (d. 2011)
- Sep 18 Kurt Lotz, German business executive and second postwar CEO of Volkswagen, born in Frielendorf, Hesse, Germany (d. 2005)
- Sep 18 Sarah Palfrey Cooke, American tennis player (US Nat C'ship 1941, 45), born in Sharon, Massachusetts (d. 1996)
- Sep 19 Kurt Sanderling, German conductor (East Berlin Symphony 1960-77), born in Arys, German Empire (d. 2011)
- Sep 21 Charles "Chuck" Jones, American animator and cartoonist best known for his work with Warner Bros. (Bugs Bunny, Daffy Duck, Wile E. Coyote, Road Runner, Porky Pig), born in Spokane, Washington (d. 2002)
- Sep 21 György Sándor, Hungarian pianist, born in Budapest (d. 2005)
- Sep 22 Alfred G. Vanderbilt Jr., English thoroughbred horse owner (Bed O' Roses, Native Dancer), born in London (d. 1999)
- Sep 22 Martha Scott, American actress (The Ten Commandments, Our Town, Ben-Hur), born in Jamesport, Missouri (d. 2003)
- Sep 23 Ghulam Mustafa Khan, Pakistani researcher, critic and linguist (d. 2005)
- Sep 23 Tony Smith, American sculptor (d. 1980)
- Sep 24 Donald "Don" Porter, American actor (Gidget, The Ann Sothern Show), born in Miami, Oklahoma (d. 1997)
- Sep 24 Ian Serraillier, English children's books author (The Silver Sword), born in London (d. 1994)
- Sep 27 Gerben Wagenaar, Dutch resistance fighter and communist, born in Amsterdam (d. 1993)
- Sep 27 Mary Grierson, Welsh botanical artist, born in Bangor, Wales (d. 2012)
- Sep 27 Tauno Marttinen, Finnish composer (Dalai Lama Concerto; Elegia), born in Helsinki, Finland (d. 2008)
- Sep 29 Lukas Ammann, Swiss actor (Graf Yoster; Day of Anger; Class Reunion; Palace Hotel), born in Basel, Switzerland (d. 2017)
- Sep 29 Michelangelo Antonioni, Italian director (Blowup, Red Desert), born in Ferrara, Italy (d. 2007)
- Sep 30 Oliver Anderson, English novelist (Rotten Borough), born in Snitterby, England (d. 1996)
About September 1912
How Old? 110 years old
Generation: Greatest Generation
Leap Year: Yes