Johnson spent 12 years at St. Albans before moving on to the
University of Florida (1975–79) as assistant track coach and then head coach at
Stanford University (1979–92), succeeding coach
Payton Jordan, and
California Polytechnic State University (1993–96). At St. Albans, Johnson helped steer some 200 inner city boys to the prep school, via an opportunity he created called The RISK Program. Johnson coached Olympians since 1960, beginning with 110-meter hurdles silver medalist
Willie May. Since then, notable Olympians coached by Johnson include
Esther Stroy (a 15-year-old girl he trained through a neighborhood track club to get to the 1968 Olympics Johnson also was a former director of the ARCO Olympic Training Center for the United States Olympic Team (there at its opening in 2003–04) and acted as High Performance Division Chair for
USA Track & Field. ==Later life==