Both David Parks and Troy Aikman are former American football players, who played for the Dallas cowboys?
Dave Parks: David Wayne Parks (born December 25, 1941 in Muenster, Texas) is a former American football wide receiver/end in the NFL. Dave Parks:  Among the class of 2008 are such notables as Lou Holtz, Troy Aikman, Jay Novacek, and Thurman Thomas. Troy Aikman: Troy Kenneth Aikman (born November 21, 1966) is a former American football quarterback who played for the Dallas Cowboys in the National Football League (NFL).
Troy Aikman