Hour of the Gun accuracy than most motion picture accounts of the events and is based on the non-fiction book "Tombstone's Epitaph" by Douglas D. Martin, with a screenplay by Edward Anhalt. In "Hour of the Gun" Ike Clanton is shown, correctly, to have survived the Gunfight at the O.K. Corral, whereas previous films had him killed at the gunfight. Outnumbered but determined, Wyatt Earp (James Garner), his brothers Virgil (Frank Converse) and Morgan (Sam Melville) and ally Doc Holliday (Jason Robards) confront and clearly get the best of the Ike Clanton gang in a violent shootout at the O.K. Corral in the Arizona
Gunfight at the O.K. Corral was part of the Works Progress Administration. According to one report, Hayhurst was a friend of the Behan family. After he completed his transcription, he kept the original document in his home, where it was destroyed in a house fire. The interpersonal conflicts and feuds leading to the gunfight were complex. Each side had strong family ties. The brothers James, Virgil, Wyatt, Morgan, and Warren Earp were a tight-knit family, working together as pimps, lawmen, and saloon owners in several frontier towns, among other occupations, and had moved together from one town to another. Virgil served in the Union Army