Events in Sport
- Apr 5 99th Grand National: 25/1 shot Bogskar ridden by Royal Air Force sergeant Mervyn Jones wins by 4 lengths from MacMoffat; last true Aintree GN before a 5-year break due to World War II
- Apr 7 7th US Masters Tournament, Augusta National GC: Jimmy Demaret wins the first of his 3 Masters titles, 4 strokes ahead of runner-up Lloyd Mangrum
- Apr 12 NFL cuts clipping penalty from 25 yards to 15 yards
- Apr 13 Cornelious Warmerdam became 1st man to pole vault 15 ft
- Apr 13 Stanley Cup Final, Maple Leaf Gardens, Toronto, ON: New York Rangers beat Toronto Maple Leafs, 3-2 for 4-2 series victory; Rangers last Cup win for 54 years
- Apr 15 44th Boston Marathon won by Gérard Côté of Canada in 2:28:28.6; first of 4 wins in the event
- Apr 23 NY Yankees dedicate a plaque to Jacob Rupert
- Apr 30 Brooklyn Dodger Tex Carleton no-hits Cincinnati Reds, 3-0
Birthdays in Sport
- Apr 4 Richard Attwood, British racing driver, born in Wolverhampton, Staffordshire
- Apr 8 John Havlicek, Basketball Hall of Fame guard (8-time NBA champion-Boston Celtics; 13-time NBA All Star), born in Martin's Ferry, Ohio (d. 2019)
- Apr 9 Jim [James Wilfred] Roberts, Canadian NHL defenceman (1st Blues draft pick), born in Toronto (d. 2015)
- Apr 12 Woodie Fryman, American baseball player, born in Ewing, Kentucky (d. 2011)
- Apr 13 Mike Beuttler, British racing driver, born in Cairo, Egypt (d. 1988)
- Apr 13 Jim McNab, Scottish footballer, born in Denny, Stirlingshire, Scotland (d. 2006)
- Apr 15 Edy Hubacher, Swiss 4-man bobsled (Olympic gold 1972), born in Bern, Switzerland
- Apr 16 David Holford, West Indian cricket all-rounder (24 Tests), born in Upper Collymore Rock, Saint Michael, Barbados
- Apr 18 Ed Garvey, American labor leader (NFL Players Association), born in Burlington, Wisconsin (d. 2017)
- Apr 20 George Andrie, American NFL defensive end (5-time Pro Bowl), born in Grand Rapids, Michigan (d. 2018)
- Apr 24 David Larter, Scottish cricketer (two-metre tall England pace bowler), born in Inverness, Scotland
- Apr 26 Cliff Watson, English rugby league front rower (St Helens, Cronulla-Sutherland, GB 30 Tests), born in London, England (d. 2018)
- Apr 29 Brian Taber, cricket wicket-keeper (Australian between Grout & Marsh)