Roger Staubach wore No. 12 from 1969 to 1979.
Roger Stauback
It was Danny White. He was drafted by the Cowboys in 1976 and became a starter in 1980 after Staubach's retirement.
Staubach took over the starting job during the 1971 season, and led the Cowboys to their first-ever NFL championship in Super Bowl VI.
Quarterback
Doug Free is number 68 on the Dallas Cowboys.
Demarco Murray's number for the Cowboys is 29.
Anthony Spencer is number 93 on the Dallas Cowboys.
B.W. Webb is number 20 on the Dallas Cowboys.
Barry Church is number 42 on the Dallas Cowboys.
Ben Bass is number 79 on the Dallas Cowboys.
Brandon Carr is number 39 on the Dallas Cowboys.
Bruce Carter is number 54 on the Dallas Cowboys.