- Mar 1 Irish Meusel, American baseball left fielder (World Series 1921, 22; NL RBI leader 1923; Philadelphia Phillies, New York Giants), dies at 69
- Mar 4 William Carlos Williams, American physician and poet (Pictures from Brueghel, and Other Poems), dies at 79
- Mar 5 Cyril Smith, Scottish actor (The Adventures of Sir Lancelot), dies from a heart attack at 70
- Mar 5 Harold "Hawkshaw" Hawkins, American country singer (Ozark Jubilee; "Lonesome 7-7203"), dies in a plane crash at 41
- Mar 5 Lloyd "Cowboy" Copas, American country singer ("Candy Kisses"; "Alabam"), dies in a plane crash at 49
Patsy Cline (1932-1963)
Mar 5 American country singer ("Crazy"; "I Fall To Pieces"; "Walkin' After Midnight"), dies in a plane crash at 30
- Mar 6 Kornelis ter Laan, 1st Dutch socialist mayor (Zaandam), dies at 91
- Mar 8 John Hartley, cricketer (bowl avg 115 in 2 Tests for Eng 1906), dies
- Mar 9 Frederic G. Melcher, American publisher and editor who founded children's book week, dies at 83
- Mar 10 Irving Aaronson, American jazz pianist and big band lbandeader, dies of a heart attack at 68
- Mar 11 Mahomed Nissar, Indian cricketer (6 Tests for India 1932-36, 25 wkts), dies at 52
- Mar 13 Austin Dobson, British racing driver (b. 1912)
- Mar 17 Lizzie Miles [Elizabeth Landreaux], Creole-American jazz, blues and gospel singer ("Man O'War"), dies of a heart attack at 68
- Mar 17 William Henry Squire, British composer and cellist, dies at 91
- Mar 18 Wanda Hawley, American actress (b. 1895)
- Mar 20 Karl Otten, German Expressionist writer, dies at 73
- Mar 22 Cilly Aussem, German tennis player (French C'ships, Wimbledon 1931), dies of liver failure at 54
- Mar 25 Davey Moore, American boxer (world featherweight champion 1959-63), dies of injuries sustained in title bout against Sugar Ramos at 29
- Mar 28 Alec Templeton, Welsh pianist and composer (Concertino Lirico), dies at 52
- Mar 29 Pola Gojawiczynska, Polish author (Stolica), dies at 64
- Mar 30 Alexander Gauk, Russian-Soviet composer, dies at 69
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning