Harmon Killebrew . Harmon Killebrew (June 29, 1936 – May 17, 2011) was an American professional baseball first baseman, third baseman, and left fielder. During his 22-year career in Major League Baseball, primarily with the Minnesota Twins, Killebrew was a prolific power hitter who, at the time of his retirement, had the fourth most home runs in major league history. Second only to Babe Ruth in home runs in the American League, he was inducted into the National Baseball Hall of Fame in 1984. He led the American League six times in home runs and three times in runs batted in (RBIs), and was named to thirteen All-Star teams. His finest season was 1969, when he hit 49 home runs and recorded 140 RBIs. Known for his quick hands and exceptional upper body strength, Killebrew hit the longest measured home runs at Minnesota's Metropolitan Stadium, 520 ft (158 m), and Baltimore's Memorial Stadium, 471 ft (144 m). He was the first of four batters to hit a baseb...