More to explore:
Peter Breck (Nick Barkley) and his stunt double Chuck Bail. You can clearly see Chuck Bail as Nick Barkley in a saloon fight scene in S1Ep5 The Odyssey of Jubal Tanner - The Big Valley. In addition to being Peter Breck's double, he also doubled for Jethro Clampett (Max Baer, Jr) on The Beverly Hillbillies.
The late Peter Breck and his stuntman/double Chuck Bail take a break while filming “Big Valley”. (Thanx to Chuck Bail.)