- Apr 1 Beau Jack, American boxer (NYSAC world lightweight champion 1942-44), born in Waynesboro, Georgia (d. 2000)
- Apr 1 Ken Reardon, Canadian Hockey Hall of Fame defenseman and executive (Stanley Cup 1946; NHL All-Star 1946-50; Montreal Canadiens), born in Winnipeg, Manitoba (d. 2008)
- Apr 5 Les Jackson, English cricket fast bowler (2 Tests, 7 wickets; Derbyshire), born in Whitwell, England (d. 2007)
- Apr 9 Jean-Marie Balestre, French president of motor sport's FIA, born in Saint-Rémy-de-Provence, France (d. 2008)
- Apr 10 Chuck Connors, American author, actor (The Rifleman, Branded, Cowboy in Africa), professional basketball and baseball player, born in Brooklyn, New York (d. 1992)
- Apr 11 Jeff Stollmeyer, West Indian cricket batsman (32 Tests 4 x 100, HS 160; Trinidad & Tobago) and executive (President WI Board of Control 1974-81), born in Santa Cruz, Trinidad (d. 1989)
- Apr 11 Jim Hearn, American baseball pitcher (World Series 1954 NY Giants; MLB All Star 1952), born in Atlanta, Georgia (d. 1998)
Warren Spahn (1921-2003)
Apr 23 American Baseball Hall of Fame pitcher (17 × MLB All-Star; World Series 1957; Cy Young Award 1957; 8 × NL wins leader; Boston/Milwaukee Braves), born in Buffalo, New York
- Apr 30 (Dorothy) "Dottie" Green, American AAGPBL baseball player, 1943-47 (Rockford Peaches), born in Natick, Massachusetts (d. 1992)
About April 1921
How Old? 103 years old
Generation: Greatest Generation
Leap Year: No
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Tennis Champions