- Apr 3 Enrique Iturriaga, Peruvian composer (Sinfonía Junín y Ayacucho), born in Lima, Peru (d. 2019)
- Apr 3 Louis Applebaum, Canadian conductor and composer, born in Toronto, Ontario (d. 2000)
- Apr 3 Sixten Ehrling, Swedish pianist, conductor (Royal Opera of Stockholm, 1953-60; Detroit Symphony, 1963-73), and educator (Juilliard, 1973-87), born in Malmö, Sweden (d. 2005)
- Apr 7 Michael "Peanuts" Hucko, American big band jazz and session clarinetist (Glenn Miller's Army-Air Force Band; Lawrence Welk Show), born in Syracuse, New York (d. 2003)
- Apr 8 Lenore Engdahl, American classical pianist, and educator (Boston University School of Music, 1972–83), born in Minneapolis, Minnesota (d. 2018)
- Apr 9 Jørn Utzon, Danish architect (Sydney Opera House), born in Copenhagen, Denmark (d. 2008)
- Apr 11 Jimmy Lewis, American jazz double bassist and soul electric bassist, born in Nashville, Tennessee (d. 2000)
- Apr 18 Tony Mottola, American jazz guitarist, born in Kearney, New Jersey (d. 2004)
- Apr 25 Astrid Varnay, Swedish soprano (Metropolitan Opera, 1941-56), born in Stockholm, Sweden (d. 2006)
- Apr 27 Kirby Stone, American jazz combo leader (Kirby Stone Four - "Baubles Bangles & Beads"), born in New York City (d. 1981)
About April 1918
How Old? 105 or 106 years old
Generation: Greatest Generation
Leap Year: No
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