Some Unseen Events at the O.K. Corral

An Season 3 episode of Star Trek had several bridge members of the Enterprise put into an imaginary reliving of the fight at the O.K. Corral. So why does a young boy living in the real Tombstone in 1881 dream of the Earps being called Kirk and Spock? And what of the real-life phaser that was excavated from the area. These questions are posed to Cord Devlin due to his fascination with Star Trek.