Harmon Killebrew was known for his soft side
MLB All-Star Game Fast Facts
Harmon Killebrew, Derrick Boogaard, Seve Ballesteros: Remembered
Harmon Killebrew Facts
Harmon Killebrew Baseball Stats by Baseball Almanac
June 3-4, 1967: Harmon Killebrew blasts two tape-measure home runs on consecutive days – Society for American Baseball Research
Harmon Killebrew - Wikipedia
Harmon Killebrew - Wikipedia
Killebrew, Harmon Baseball Hall of Fame
When Hall of Famer Harmon Killer Killebrew died in May 2011, the baseball world lost one of its best hitters and one of the finest ambassadors the game has ever known. Killebrew was second only to Babe Ruth in home runs by an American League slugger, and finished his career with 573 home runs and in 11th place for all-time Major League Baseball history.
Harmon Killebrew: Ultimate Slugger [Book]