Mark Johnson (umpire)

Mark Stephen Johnson (November 18, 1950 – October 26, 2016)^[1] was a professional baseball umpire who worked in the American League from 1979 to 1999, wearing uniform number 25 when the AL adopted them in 1980. Johnson was an umpire in the 1993 World Series and the 1990 and 1999 Major League Baseball All-Star Game. In his career, he umpired 1,979 Major League games.^[2]