10 August 2015: Calvin Hill of the Dallas Cowboys during training camp at City of Oxnard Fields in Oxnard, California. Photo by James D. Smith/Dallas Cowboys

Calvin Hill is not only the first running back selected by the Cowboys in the first round of the NFL Draft (24th overall pick, 1969), he also holds the distinction of the being the first Cowboys running back to top 1,000 rushing yards in a single season (1,045 yards, 1972).

Hill, a proud graduate of Yale, is also the first Ivy League player ever drafted in the first round in NFL history. He made a huge splash in the pros, earning NFL Rookie of the Year Honors for the 1969 season.

Interestingly, Hill did not start his Cowboys career as a running back. When he arrived at training camp, the Cowboys played him at tight end and linebacker. Injuries at the running back position forced the coaching staff to move Hill to the offensive backfield for the second preseason game.