| Issue | #19 |
| Published | December 1944 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | Charles Biro; Bob Wood |
| Pencils | Charles Biro |
| Inks | Charles Biro |
| Script | Charles Biro |
| Pencils | Carl Hubbell? |
| Inks | Carl Hubbell? |
| Script | Bob Wood? |
| Pencils | Bob Montana? |
| Inks | Bob Montana? |
| Script | Bob Wood? |
| Pencils | Rudy Palais |
| Inks | Rudy Palais |
| Script | Dick Wood |
| Letters | typeset |
| Script | Dick Wood |
| Pencils | R. W. Hall |
| Inks | R. W. Hall |
| Characters | Anthony Van Leuwenhoek |
| Script | Dick Briefer |
| Pencils | Dick Briefer |
| Inks | Dick Briefer |
| Characters | I: The Archer (Wiley Collins, D?) |
| Script | Bob Wood? |
| Pencils | Alan Mandel |
| Inks | Alan Mandel |