| Issue | #21 |
| Published | June-August 1956 |
| Frequency | Quarterly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | George T. Delacorte, Jr. (president); Helen Meyer (vice-president); Albert P. Delacorte (vice-president) |
| Notes | Designed, produced, and © 1956, by Western Printing & Lithographing Company. |
| Characters | Rex Allen (photo) |
| Genre | western |
| Pencils | ? (photo) |
| Inks | ? (photo) |
| Colors | ? (photo) |
| Notes | Photo cover |
| Synopsis | Article about methods of separating gold from sand and gravel used in the California Gold Rush. |
| Genre | western; fact |
| Letters | typeset |
| Notes | Inside front cover. Black and white. Large illustration with typeset text. |
| Characters | Rex Allen; Koko (horse); Sheriff Duncan; Deputy Chet Morse; Hardtack; Mike Cannon; Matt; Pete; Cal Cannon |
| Synopsis | First line: "Rex Allen and his old friend, Sheriff Duncan, ride into the foothills near the little town of Elkhorn..." |
| Genre | western |
| Pencils | Nicholas Firfires |
| Inks | Nicholas Firfires ? |
| Characters | Hector Webb; Gent Lacey; Bruno Vaden |
| Synopsis | First line: "Hector Webb, head of Granite City´s Shool Board, is in a strange setting as he meets a new textbook salesman..." |
| Genre | western |
| Pencils | Dan Spiegle |
| Synopsis | First line: "The Frontier Days celebration in the town of Mile-High, intended to be a week of revival of its trail town youth, had somehow gone sour." |
| Genre | western |
| Letters | typeset |
| Notes | Text story with 1/8 page highly-stylized title illustration. |
| Characters | Rex Allen; Koko (horse); Sheriff Regan; Gage Kemper; Jim Stanley |
| Synopsis | First line: "Late one night, Rex enters the town of Sunrise to visit his friend, Jim Stanley..." |
| Genre | western |
| Pencils | Nat Edson |
| Inks | Nat Edson |
| Synopsis | Article about a "war" fought between two competing groups of miners who accidently connected their mines underground. |
| Genre | western; fact |
| Letters | typeset |
| Notes | Inside back cover. Black and white. Large illustration with typeset text. |
| Characters | Rex Allen (photo) |
| Synopsis | Rex Allen strikes a casual pose leaning against a building. |
| Genre | western |
| Pencils | ? (photo) |
| Inks | ? (photo) |
| Colors | ? (photo) |
| Notes | Back cover. Color photograph with no text. |