| 0 | More Secret Origins | cover | 1 | pencils: Murphy Anderson; inks: Murphy Anderson | Justice League of America [Wonder Woman [Diana Prince]; Green Lantern [Hal Jordan]; Batman [Bruce Wayne]; Green Arrow [Oliver Queen]; Martian Manhunter [J'onn J'onzz]; Aquaman [Arthur Curry]; The Flash [Barry Allen]]; The Flash [Barry Allen]; Robin [Dick Grayson]; The Atom [Ray Palmer]; Superman [Cl |
| 1 | More Secret Origins Table of Contents | table of contents | 1 | letters: typeset | |
| 2 | The Origin of the Justice League! | comic story | 25 | script: Gardner Fox; pencils: Mike Sekowsky; inks: Bernard Sachs; letters: Gaspar Saladino | Justice League of America [Aquaman [Arthur Curry]; Batman [Bruce Wayne]; The Flash [Barry Allen]; Green Lantern [Hal Jordan]; Martian Manhunter [J'onn J'onzz]; Superman [Clark Kent]; Wonder Woman [Diana Prince]; Snapper Carr; Green Arrow [Oliver Queen]] (origin); Queen Hippolyta; Amazons of Paradise |
| 4 | The Flash | promo (ad from the publisher) | 0.33 | | |
| 5 | Just Imagine! | promo (ad from the publisher) | 0.33 | | |
| 7 | 10 Issues of Your Favorite Magazine for Only $1.00 | promo (ad from the publisher) | 2 | letters: typeset | |
| 8 | Friends Across the Seas | public service announcement | 1 | script: Jack Schiff; pencils: Sheldon Moldoff; inks: Sheldon Moldoff; letters: Ira Schnapp | |
| 9 | Birth of the Atom! | comic story | 9.67 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson | The Atom [Ray Palmer] (scientist, introduction, origin); Jean Loring (attorney, introduction); un-named students |
| 10 | - | promo (ad from the publisher) | 0.33 | | |
| 11 | Origins of Legendary Heroes | text article | 2 | letters: typeset | |
| 12 | - | comic story | 0.5 | script: Henry Boltinoff; pencils: Henry Boltinoff; inks: Henry Boltinoff; letters: Henry Boltinoff | |
| 14 | How Aquaman Got His Powers! | comic story | 6.67 | script: Robert Bernstein; pencils: Ramona Fradon; inks: Ramona Fradon | Aquaman [Arthur Curry] (Origin); Atlanna (Tom's wife, death, flashback); Tom Curry (Arthur's father, flashback); Commander Haskel |
| 15 | Aquaman | promo (ad from the publisher) | 0.33 | | |
| 16 | The Man from Robin's Past | comic story | 7.67 | script: Bill Finger; pencils: Sheldon Moldoff; inks: Charles Paris; letters: Stan Starkman | Batman [Bruce Wayne]; Robin [Dick Grayson] (origin re-told); The Flying Graysons (Dick's parents, both die, flashback); Sando (circus friend of Dick's); Sando's son; Limey Lou (villain, fence); Lou's gang (villains, jewel thieves) |
| 17 | Detective Comics; Batman | promo (ad from the publisher) | 0.33 | | |
| 18 | The Origin of Flash's Masked Identity! | comic story | 7 | script: John Broome; pencils: Carmine Infantino; inks: Joe Giella | The Flash [Barry Allen]; The Flash [Jay Garrick] (on a Golden Age cover that Barry Allen is holding); Dr. Bailey (Jay's physician); art thieves (villains) |
| 20 | The Story of Superman's Life! | comic story | 12.67 | script: Otto Binder; pencils: Al Plastino; inks: Al Plastino | Superman [Clark Kent] (origin retold in detail); Jor-El; Zor-El (Jor-El's brother); Lara; Jonathan Kent; Martha Kent; Lana Lang; Krypto; Kal-El; Superboy [Clark Kent]; Jimmy Olsen; Lois Lane; Perry White; Lex Luthor (villain) |
| 21 | World's Finest Comics | promo (ad from the publisher) | 0.33 | | |