| 0 | Secret Origins of Super-Heroes | cover | 1 | pencils: Ross Andru; inks: Dick Giordano | Superboy; Batman; Atom [Ray Palmer]; Doctor Fate; Green Lantern [Hal Jordan]; Krypto; Batgirl [Barbara Gordon]; Swamp Thing; Aqualad [Garth]; Green Arrow [Oliver Queen] |
| 1 | Secret Origins | table of contents | 1 | script: E. Nelson Bridwell | |
| 2 | Birth of the Atom! | comic story | 10 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Bob LeRose; letters: Gaspar Saladino | Atom [Ray Palmer]; Jean Loring |
| 3 | Battle of the Tiny Titans | comic story | 15 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Bob LeRose; letters: Gaspar Saladino | Atom [Ray Palmer]; Jean Loring; Kulan Dar; Carl Ballard |
| 4 | Swamp Thing | comic story | 8 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson, Jeff Jones; colors: Adrienne Roy; letters: Ben Oda | Swamp Thing [Alex Olsen]; Linda Olsen Ridge; Damian Ridge |
| 5 | The Million Dollar Debut of Batgirl! | comic story | 16 | script: Gardner Fox; pencils: Carmine Infantino; inks: Sid Greene; colors: Bob LeRose; letters: Gaspar Saladino; editing: Julius Schwartz | Batman [Bruce Wayne]; Robin [Dick Grayson]; Commissioner James Gordon; Batgirl [Barbara Gordon] (introduction, origin); Killer Moth (villain); Pupa; Larva; Alfred Pennyworth; Burton Talbot |
| 6 | The Kid from Atlantis! | comic story | 7 | script: Robert Bernstein; pencils: Ramona Fradon; inks: Ramona Fradon; colors: Phil Rachelson | Aquaman [Arthur Curry]; Aqualad [Garth] (intro, origin); Atlantis; Topo |
| 7 | The Origin of Green Lantern's Oath! | comic story | 10 | script: John Broome; pencils: Gil Kane; inks: Murphy Anderson; colors: Anthony Tollin; letters: Gaspar Saladino | Green Lantern [Hal Jordan]; Pieface [Thomas Kalmaku]; Carol Ferris; Mr. Burbank (banker); Hank (bank robber); Mr. Davis (jet mechanic); Hank (safe-cracker) |
| 8 | The Super-Dog from Krypton! | comic story | 10 | script: Otto Binder; pencils: Curt Swan; inks: Sy Barry; colors: Anthony Tollin | Superboy [Clark Kent]; Krypto; Jonathan Kent; Jor-El (flashback); Lara (flashback); Lana Lang |
| 9 | The Origin of Doctor Fate | comic story | 6 | script: Gardner Fox; pencils: Howard Sherman; inks: Howard Sherman; colors: Phil Rachelson; letters: Howard Sherman | Doctor Fate [Kent Nelson]; Sven Nelson; Nabu the Wise; Inza Kramer; Black Nergal |
| 10 | The Green Arrow's First Case | comic story | 7 | script: Ed Herron, Jack Kirby; pencils: Jack Kirby; inks: Jack Kirby, Rosalind Kirby; colors: Anthony Tollin; letters: John Duffy | Green Arrow [Oliver Queen]; Speedy [Roy Harper]; Arrow-Plane; Carter (seaman) |
| 11 | The World's Worst Archer! | comic story | 7 | script: Robert Bernstein; pencils: Lee Elias; inks: Lee Elias; colors: Phil Rachelson | Green Arrow [Oliver Queen]; Speedy [Roy Harper] (new Origin); Chief Brave Bow; Ranger Harper (Roy's Father, flashback); Arrow-Car |
| 12 | - | promo (ad from the publisher) | 1 | | |
| 13 | 10 Classic Origin Stories! | foreword, introduction, preface, afterword | 1 | pencils: Ross Andru; inks: Dick Giordano | Superboy; Batman; Robin [Dick Grayson]; Atom [Ray Palmer]; Doctor Fate; Green Lantern [Hal Jordan]; Krypto; Batgirl [Barbara Gordon]; Swamp Thing; Aqualad [Garth]; Green Arrow [Oliver Queen]; Speedy [Roy Harper] |