Howie Morenz[?], voted top athlete of the 1st half of the 20th century
Bobby Orr, (born 1948), considered by many to be the best ever, revolutionized the role of a defensemen becoming the first to win the scoring title (twice).
... of the Nobel Prize in literature
May 11 - Salvador Dalí, artist
May 17 - Jean Gabin[?], actor (+ 1976)
May 21 - Fats Waller, pianist (+ 1943)
May 21 - ...