LeBaron, 85, died of natural causes at his home, said the University of the Pacific, his alma mater and the program he led to an undefeated season in 1949. Ted Leland, the school's athletics director, called LeBaron, "the greatest Tiger of them all."
Over his 11 NFL seasons LeBaron threw for 13,399 yards and more than 100 touchdowns.
Later in life, LeBaron served as the general manager of the Atlanta Falcons for five years, from 1977 to 1982. He won the NFL's executive of the year award during the 1980 season.
In addition to his time in the NFL, LeBaron served in the Korean War as a member of the U.S. Marines, where he won a Purple Heart and Bronze Star medal for acts of heroism.
He was an attorney, receiving his law degree from George Washington University in 1959 and retiring from his law practice in Sacramento in 1997.
- Will Green