Have Gun, Will Travel S01 E35 The Return of Dr. Thackeray

"I don't think you got a very good look at this gun while you had it."

Dr. Phyllis Thackeray diagnoses the cook at the Barton Ranch with smallpox. All the cowhands may be infected and need to be vaccinated. Dr. Thackeray sends for the one man she thinks can help.