| Issue | #66 |
| Published | September-October 1950 |
| Cover Price | 0.10 |
| Pages | 52 |
| Editing | Whitney Ellsworth (credited), Mort Weisinger, (actual) |
| Notes | credits corrected 7/27/08 by Bob Hughes |
| Characters | Superman |
| Genre | superhero |
| Pencils | Al Plastino |
| Inks | Al Plastino |
| Notes | credits corrected 7/27/08 by Bob Hughes |
| Reprinted | in Superman From the Thirties to the Eighties (Crown Publishers, Inc., 1983 series) #nn |
| Characters | Superman; Lois Lane; Prankster (Villain); Killer Kenton; Eddie; Baby Betty; Perry White; Superbaby (1st comic book appearance) |
| Synopsis | The Prankster finds the Fountain of Youth and starts using it to commit crimes. Clark accidentally drinks some of it and reverts to Superbaby. |
| Genre | superhero |
| Script | William Woolfolk |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Notes | Proto-red kryptonite story. |
| Characters | Superman; Lois Lane; Kryptonite |
| Synopsis | Superman believes he is dying because he has come into contact with Kryptonite once too often. |
| Genre | superhero |
| Script | William Woolfolk |
| Pencils | Al Plastino |
| Inks | Stan Kaye |
| Notes | Story reworked in issue #156 |
| Genre | gags |
| Script | Harry Lampert (signed) |
| Pencils | Harry Lampert (signed) |
| Inks | Harry Lampert (signed) |
| Letters | Harry Lampert (signed) |
| Pencils | Raymond Perry ? |
| Inks | Raymond Perry ? |
| Colors | Raymond Perry ? |
| Letters | Typeset |
| Genre | gag |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Characters | Superman |
| Script | Martin Naydel (signed) |
| Pencils | Martin Naydel (signed) |
| Inks | Martin Naydel (signed) |
| Genre | fact |
| Script | Martin Naydel (signed) |
| Pencils | Martin Naydel (signed) |
| Inks | Martin Naydel (signed) |
| Characters | Superman; Lois Lane; Perry White; Finney Floor (Intro); Minnie |
| Synopsis | Lois' old boyfriend Finney can't get anywhere in the world because of his persistent bad luck. |
| Genre | superhero |
| Script | Alvin Schwartz |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Notes | Giant typewriter in story, reminscent of Batman gimmicks. |
| Genre | teen; humor |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Genre | funny animals |
| Script | Jack Schiff |
| Pencils | Otto Feuer |
| Inks | Otto Feuer |