Other mistake: A female rancher hires workers to dig a water ditch on her property and hires two gunmen for protection. The other ranchers, upset about losing their water supply, vote on whether to fight the woman or let her be. Each man votes by dropping a small stone into a barrel. A black stone means "fight" and a white stone means "let her be." When the barrel is emptied, there are 23 black stones. However, there are only 14 ranchers in the room.
Gunsmoke (1955)
1 mistake in season 8
Starring: James Arness, Ken Curtis, Amanda Blake, Milburn Stone
Dr. Galen 'Doc' Adams: I'll tell you why the Hagens live so long.
Festus Haggen: Why?
Dr. Galen 'Doc' Adams: 'Cause they're too dumb to know they're dead.
Trivia: Although they played father and son in this episode, Jack Elam was only six years older than Harry Dean Stanton.