- Sep 12 Mickey Lolich, American pitcher (Detroit Tiger, won 25 in 1971), born in Portland, Oregon
- Sep 14 Larry Brown, American NBA player and coach (NY Knicks), born in Brooklyn, New York
- Sep 15 Frank Linzy, American baseball player, born in Fort Gibson, Oklahoma
- Sep 15 Merlin Olsen, American football player (Los Angeles Rams) and actor (Father Murphy), born in Logan, Utah (d. 2010)
- Sep 20 Terry McDermott, American speed skater (Olympic gold 500m 1964, silver 1968), born in Essexville, Michigan (d. 2023)
- Sep 24 Slaven Zambata, Croatian soccer forward (31 caps Yugoslavia; Dinamo Zagreb), born in Sinj, Croatia (d. 2020)
- Sep 26 Frank Maloney, American football coach (Syracuse University 1974-1980), born in Chicago, Illinois (d. 2020)
- Sep 27 Benoni Beheyt, Belgian cyclist
- Sep 28 Marcel Puget, French rugby union halfback and captain (17 Tests; CA Brive, Stade Toulousain, Stade Rodez Aveyron), born in Limoux, France (d. 2021)
- Sep 29 Mike Eischeid, American NFL punter (Oakland Raiders), born in Orange City, Iowa
- Sep 30 Harry Winston Jerome, Canadian 100m runner (Olympic bronze 1964), born in Sask, Canada
About September 1940
How Old? 83 years old
Generation: Silent Generation
Leap Year: Yes
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions