| Issue | #39 |
| Published | September 1949 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | Wendell Crowley |
| Characters | Captain Marvel [Billy Batson]; Captain Marvel, Jr. [Freddy Freeman]; Mary Marvel [Mary Batson] |
| Genre | superhero |
| Pencils | C. C. Beck |
| Inks | C. C. Beck? |
| Characters | Captain Marvel [Billy Batson]; Captain Marvel, Jr. [Freddy Freeman]; Mary Marvel [Mary Batson]; The Zoo King (first appearance; villain) |
| Synopsis | The Marvel Family proves Atlantis was a myth, and is really Australia--which is surprising, since Cap, Jr. visited Atlantis in issue #10. |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Kurt Schaffenberger |
| Inks | Kurt Schaffenberger |
| Genre | Gags |
| Script | Art Helfant |
| Pencils | Art Helfant |
| Inks | Art Helfant |
| Characters | Captain Marvel [Billy Batson]; Captain Marvel, Jr. [Freddy Freeman]; Mary Marvel [Mary Batson] |
| Genre | superhero |
| Pencils | Bill Ward? |
| Inks | Bill Ward? |
| Genre | Gags |
| Script | Howard Boughner |
| Pencils | Howard Boughner |
| Inks | Howard Boughner |
| Genre | Gags |
| Characters | Mary Marvel [Mary Batson]; Woman of a Thousand Faces (first appearance; villain) |
| Genre | superhero |
| Script | Otto Binder |
| Script | Basil Wolverton |
| Pencils | Basil Wolverton |
| Inks | Basil Wolverton |
| Genre | Gags |
| Letters | typeset |
| Genre | humor |
| Script | Howard Boughner |
| Pencils | Howard Boughner |
| Inks | Howard Boughner |
| Characters | Captain Marvel [Billy Batson]; Sivana (villain) |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | C. C. Beck |
| Inks | Pete Costanza |
| Genre | Gags |