Quillan was originally selected by the 49ers in the seventh round (175th overall) of the 1978 NFL Draft. He appeared in 143 games (129 starts) in the regular season in addition to 11 (10 starts) career playoff games during his 10-year career in San Francisco.
Quillan was named to consecutive Pro Bowls in 1984 and 1985 and was a member of the 49ers Super Bowl champion teams in 1981 and 1984.
A Portland, Oregon native, Quillan attended the University of Oregon where he was named All-West Coast center as a junior in 1976.
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