[4] As a sophomore in 1976, Jefferson helped McNeese win their first Southland Conference championship while reaching the Independence Bowl.
[4][5] He also received selection to the Louisiana Sports Writers Association All-Louisiana team.
[5] Selected by the Denver Broncos in the fourth round (105th overall) of the 1979 NFL draft, Jefferson was placed on injured reserve before the season began.
[13] Jefferson was named in a poll to the Southland Conference 1970s All-Decade team in 2013 and one year later was inducted into the McNeese State Hall of Fame.
[5] He wrote a book on his life, titled Memoirs: The Legacy of a Professional Football Player, in 2019.