| Issue | #685 |
| Published | March 1956 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | ? |
| Notes | Indicia title is "JOHNNY MACK BROWN, No. 685." Code number is J.M.B. O.S. #685-563. Copyright 1956 by Johnny Mack Brown. |
| Characters | Johnny Mack Brown (photo) |
| Genre | western |
| Pencils | ? (photo) |
| Inks | ? (photo) |
| Colors | ? (photo) |
| Synopsis | Facts about rodeo clowns. |
| Genre | western; fact |
| Letters | typeset |
| Notes | Inside front cover; black and white. One large illustration with typeset text. |
| Characters | Johnny Mack Brown; Rebel (horse) |
| Synopsis | A gang of bandits is robbing banks while the townspeople are all attending the rodeo. |
| Genre | western |
| Pencils | Sparky Moore |
| Inks | Sparky Moore |
| Notes | Pencils and inks credits for this sequence from Alberto Becattini (May 14, 2007) |
| Characters | Johnny Mack Brown; Rebel (horse) |
| Synopsis | Johnny helps a steamboat captain attempt to navigate further upstream than any boat has traveled before. The aim is to connect with a new gold strike 50 miles upriver, but someone is trying to sabotage the voyage. |
| Genre | western |
| Pencils | Nicholas Firfires |
| Inks | Nicholas Firfires |
| Letters | Nicholas Firfires |
| Notes | Story continues on inside back cover in black and white and concludes on back cover in color. The last panel is Dell's "A Pledge to Parents." Pencils, inks, and letters credits for this sequence from Alberto Becattini (May 14, 2007) |