[1] He attended Garden City High School before moving on to the University of Kansas, where he was a part of the same offensive backfield as Gale Sayers.
[3] Johnson was selected by the Oakland Raiders in the 14th round (125th overall) of the 1966 AFL Draft, but instead chose to sign with the NFL's Dallas Cowboys as a free agent in 1966.
He was converted into a defensive back, based on how the Cowboys saw him tackle on special teams in college.
[4] In 1967, he passed Warren Livingston on the depth chart for the right cornerback starting position and finished with 5 interceptions.
[5] In 1968, he registered 3 interceptions, but was back on the bench after Dick Daniels was moved to safety and Mel Renfro to right cornerback.