| Issue | #584 |
| Published | September 1954 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | ? |
| Notes | Indicia title is "JOHNNY MACK BROWN, No. 584." Code number is J.M.B. #584-549. (No O.S. in code number.) Copyright 1954 by Johnny Mack Brown. Fifth of 13 Johnny Mack Brown Four Colors. Would be Johnny Mack Brown #14 if regular series had continued. |
| Characters | Johnny Mack Brown (photo) |
| Genre | western |
| Pencils | ? (photo) |
| Inks | ? (photo) |
| Colors | ? (photo) |
| Synopsis | Brief history of vigilante justice for horse thieves in the Old West. |
| Genre | fact; western |
| Letters | typeset |
| Notes | Inside front cover; black and white. Two illustrations with typeset text. |
| Characters | Johnny Mack Brown; Rebel (horse) |
| Synopsis | Arriving in Grande Mesa late at night, Johnny pays a visit to an old friend, Jim Murdock, who is managing a theatre. Two robbers break in to steal the payroll, shoot Jim, and knock Johnny unconscious. When Johnny recovers consciousness in the doctor's office, he finds that Jim is dead. The next morning, Johnny and Tom Murdock, Tom's son and town sheriff, ride out to pick up the trail of the killers. |
| Genre | western |
| Characters | Johnny Mack Brown; Rebel (horse) |
| Synopsis | Johnny interrupts a stage coach robbery, but the guard is shot. Spike Nash, the driver, and Johnny take the wounded man to a nearby Navajo village, where Spike is well-known. The bandits sneak up on the village and kill a Navajo. Johnny trails the bandits to a box canyon. |
| Genre | western |
| Notes | Story continues on inside back cover in black and white and concludes on back cover in color. Navajo sand-painting ceremonies and burial customs are presented in a respectful manner. |