Charles R. Drew
Apr 1 Charles R. Drew, American physician and surgeon who pioneered blood plasma research and developed the blood bank concept, dies in a car crash at 45
- Apr 3 Adolf Wiklund, Swedish composer, dies at 70
- Apr 3 Carter G. Woodson, American historian (African American studies), dies at 74
- Apr 3 Kurt Weill, German-American composer (Die Dreigroschenoper - The Threepenny Opera), dies after a heart attack at 50
- Apr 7 Walter Huston, Canadian actor (Maltese Falcon, Treasure of Sierra Madre), dies from an aneurysm at 67
- Apr 8 Albert Ehrenstein, Austria writer (Strum), dies at 63
- Apr 8 Vaslav Fromich Nijinsky, Ukrainian ballet dancer, dies in London
- Apr 14 Sri Ramana Maharshi, Indian philosopher (b. 1879)
- Apr 19 Lord Berners [Gerald Tyrwhitt], English composer (1st Childhood), dies at 66
- Apr 22 Charles Hamilton Houston, American lawyer & architect of NAACP legal campaign, dies at 54
- Apr 26 G. Murray Hulbert, American politician, dies at 68
- Apr 27 Adam Tadeusz Wieniawski, Polish composer, dies at 70
- Apr 27 Karl Straube, German organist & conductor, dies at 77
- Apr 27 Hobart Cavanaugh, American actor (Border Town, Black Angel), dies at 63