| Issue | #21 |
| Published | June 1940 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | ? |
| Pencils | Ben Thompson |
| Inks | Ben Thompson |
| Script | Ben Thompson |
| Pencils | Ben Thompson |
| Inks | Ben Thompson |
| Script | Tex Blaisdell |
| Pencils | Tex Blaisdell |
| Inks | Tex Blaisdell |
| Notes | duotone |
| Script | Lochlan Field |
| Pencils | Lochlan Field |
| Inks | Lochlan Field |
| Script | Terry Gilkison |
| Pencils | Terry Gilkison |
| Inks | Terry Gilkison |
| Notes | puzzles |
| Script | Claire S. Moe |
| Pencils | Claire S. Moe |
| Inks | Claire S. Moe |
| Notes | duotone |
| Script | Ben Flinton |
| Pencils | Ben Flinton |
| Inks | Ben Flinton |
| Letters | typeset |
| Script | Sam Gilman |
| Pencils | Sam Gilman |
| Inks | Sam Gilman |
| Script | Fred Wood |
| Pencils | Fred Wood |
| Inks | Fred Wood |
| Notes | fact page |
| Notes | duotone |
| Script | Charles Pearson |
| Pencils | Charles Pearson |
| Inks | Charles Pearson |
| Notes | fact page |
| Characters | J. Edgar Hoover |
| Genre | Fact |
| Script | Joseph A. Kaliff |
| Pencils | Joseph A. Kaliff (signed) |
| Inks | Joseph A. Kaliff (signed) |
| Notes | fact page |
| Characters | Tiny; Bess |
| Script | Frank Thomas |
| Pencils | Frank Thomas (signed) |
| Inks | Frank Thomas (signed) |
| Script | Joseph A. Kaliff |
| Pencils | Joseph A. Kaliff |
| Inks | Joseph A. Kaliff |
| Notes | inside back cover |