Johnson came to Raytown South in 1961 after graduating from the University of Central Missouri. The Leavenworth native began his career as an assistant football and track coach before becoming the Cardinals head coach in 1974.
Johnson was the head coach until 1991 leading Raytown South to a 100-86-1 record in that time. That included two state semifinals, three quarterfinals, five conference championships, four district championships and two undefeated regular seasons.
He finished his coaching career in the college ranks serving as an assistant coach at Mid America Nazarene University from 1992-2005.
Johnson won the Cecil Patterson coach year in 1980 and is a member of the Missouri Football Coaches Association Hall of Fame.