Gunsmoke Radio Show
Gunsmoke, which first aired April 26, 1952 and ran until June 18, 1961 on CBS, starred William Conrad as Marshal Matt Dillon, Howard McNear as the ghoulish, brittle Doc Charles Adams, Georgia Ellis as Kitty Russell and Parley Baer as Dillon's assistant (but not his deputy) Chester Proudfoot. (On the television series, Doc's first name was changed to Galen, and Chester's last name was changed to Goode.) Chester's character had no surname until "Proudfoot" was ad libbed by Baer during a rehearsal early on, while Doc Adams was named after cartoonist Charles Addams. More episodes of Gunsmoke can be found Here
This recording is part of the Old Time Radio collection.