- Apr 2 Lionel Chevrier, Canadian politician (Canadian Member of Parliament), born in Cornwall, Ontario (d. 1987)
- Apr 3 James "Bubber" Miley, American jazz trumpet and cornet player (Duke Ellington, 1923-29 - "East St. Louis Toodle-Oo"; "Black And Tan Fantasy"), born in Aiken, South Carolina (d. 1932)
Mickey Cochrane (1903-1962)
Apr 6 American Baseball HOF catcher (MLB All-Star 1934, 35; World Series 1929, 30, 35; AL MVP 1928, 34; Philadelphia A's, Detroit Tigers) and manager (Detroit Tigers 1934–38), born in Bridgewater, Massachusetts
- Apr 7 Willi Forst, Austrian actor and director (Bel Amis, Operette, Vienna Blood), born in Vienna, Austria-Hungary (d. 1980)
- Apr 9 Gregory Pincus, American biologist and inventor (birth control pill), born in Woodbine, New Jersey (d. 1903)
- Apr 9 Ward Bond, American actor (Wagon Train, It's a Wonderful Life), born in Benkelman, Nebraska (d. 1960)
- Apr 9 Willem Pee, Belgian linguist, born in Bruges, Belgium (d. 1986)
- Apr 10 Clare Boothe Luce, American politician and U.S. ambassador to Italy, born in NYC, New York (d. 1987)
- Apr 12 Jan Tinbergen, Dutch economist (Plan of Labor, Nobel 1969), born in The Hague, Netherlands (d. 1994)
- Apr 13 Rex Evans, British actor (Frankenstein Meets The Wolfman; Zara; Matchmaker), born in Southport, Sefton, England (d. 1969)
- Apr 15 Erich Arendt, German poet and writer, born in Neuruppin, Germany (d. 1984)
- Apr 15 John Williams, British actor (Family Affair, Dial M for Murder), born in Chalfont St. Giles, Buckinghamshire, England (d. 1983)
- Apr 16 Paul Waner, American Baseball HOF right fielder (NL MVP 1927; NL batting champion 1927, 34, 36; MLB All-Star 1933–35, 37; Pittsburgh Pirates), born in Harrah, Oklahoma (d. 1965)
- Apr 17 Gregor Piatigorsky, Ukrainian-American cellist, born in Ekaterinoslav, Ukraine (d. 1976)
- Apr 17 Louis Jean Heydt, American character actor (Waterfront; Gone With The Wind; The Great McGinty), born in Montclair, New Jersey (d. 1960)
- Apr 17 Morgan Taylor, American athlete (Olympic gold 400m hurdles 1924; bronze 1928, 32), born in Sioux City, Iowa (d. 1975)
- Apr 17 Nicolas Nabokov, Russian composer (Holy Devil), born in Lubcza, Minsk, Belarus (d. 1978)
- Apr 18 Leonid Kinskey, Russian actor (Casablanca, Duck Soup), born in St Petersburg, Russia (d. 1998)
- Apr 18 Yury Sergeyevich Milyutin, Russian composer, born in Moscow (d. 1968)
- Apr 19 Eliot Ness, US Federal agent "The Untouchables" (put away Al Capone), born in Chicago, Illinois (d. 1957)
- Apr 21 Hans Hedtoft, 14th Prime Minister of Denmark (1947-50, 53-55), born in Århus, Denmark (d. 1955)
- Apr 22 Daphne Akhurst Cozens, Australian tennis player (Australasian C'ship singles 1925, 26, 28, 29, 30), born in Sydney, Australia (d. 1933)
- Apr 23 Guy Simonds, Canadian army, youngest General officer, born in Bury St Edmunds, Suffolk, England (d. 1974)
- Apr 24 Jose A Primo de Rivera, Spanish lawyer and politician (founder of Spanish Falange), born in Madrid, Spain (d. 1936)
- Apr 24 Mike Michalske, American football NFL guard (NY Yankees, Green Bay Packers), born in Cleveland, Ohio (d. 1983)
- Apr 24 Siegfried Frederick Nadel, Austrian-British anthropologist (Black Byzantium), born in Vienna, Austria (d. 1956)
- Apr 25 Andrey Nikolayevich Kolmogorov, Russian mathematician (theory of probability), born in Tambov, Russia (d. 1987)
- Apr 25 Camilla Horn, German actress (Rebus, Vertigine, Polterabend, Matinee Idol), born in Frankfurt am Main, Hesse, Germany (d. 1996)
- Apr 25 Carl Gustav Sparre Olsen, Norwegian composer, born in Stavanger, Norway (d. 1984)
- Apr 26 Niven Busch, American screenwriter (The Postman Always Rings Twice), born in NYC, New York (d. 1991)
- Apr 27 Frank Belknap Long, American writer (Rim of the Unknown), born in Harlem, Manhattan (d. 1994)
- Apr 27 Hans Kosterlitz, German-British biochemist (endorphins), born in Berlin (d. 1996)
- Apr 29 Frank Parker, American singer (Arthur Godfrey Show; Masquerade Party), born in NYC, New York (d. 1999)
- Apr 30 Günter Raphael, German composer (Symphony Breve), born in Berlin (d. 1960)
About April 1903
How Old? 119 years old
Generation: Greatest Generation
Leap Year: No