Did any Heisman Trophy winners also win MVP for a Super Bowl?

As of the 2007 season, four Heisman Trophy winners have also been named Super Bowl MVP: Roger Staubach: 1963 Heisman, Super Bowl VI MVP

Jim Plunkett: 1970 Heisman, Super Bowl XV MVP

Marcus Allen: 1981 Heisman, Super Bowl XVIII MVP

Desmond Howard: 1991 Heisman, Super Bowl XXXI MVP