Nothing is known of Vernon's background. However, though he appears to be a ranch hand and cowboy, it is revealed in the mission "On Shaky's Ground" that he has some involvement in criminal activities. Vernon has a relative, Harrison Cherry, buried in Blackwater cemetery.
Vernon plays a minor role in the mission "On Shaky's Ground", in which he is seen as one of the bandits interrogating Shaky. After John Marston breaks into the warehouse, Vernon can be shot dead or hogtied.
Vernon can usually be encountered in Blackwater and Manzanita Post, where he rides horses, or does a variety of odd jobs. However, he has been known to frequent multiple locations throughout West Elizabeth and New Austin.
- If the player decides to kill Vernon in the mission "On Shaky's Ground", Vernon can still be seen in his usual locations afterwards.
- Vernon bears a striking resemblance to Ray Warthington, save the hat, but has the same face model as Floyd Brogles.
- Vernon also shares a character head with Archie Nevers, Ernest Seahorn, Lewis Shelton, Randall Forrester, Alvin McCready, Felix Middleton, Lewis Pickering, and E.H. Kretzschmar.