| 6 | Secret Origins (2nd Series) | Reprints from Superman (1st Series) #147 and Military Comics #1; Origin of Blackhawk; Origin of The Legion of Super-Heroes |
| 25 | Secret Origins (3rd Series) | Origin of Atom (Al Pratt); Origin of the Legion of Super-Heroes |
| 25/NS | Secret Origins (3rd Series) | Origin of Atom (Al Pratt); Origin of the Legion of Super-Heroes |
| 1 | Secrets of the Legion of Super-Heroes | Origin of Colossal Boy; Origin of Cosmic Boy; Origin of Duo Damsel; Origin of Legion of Super-Heroes; Origin of Light Lass; Origin of Lightning Lad; Origin of Lightning Lord; Origin of Phantom Girl; Origin of Saturn Girl; Origin of Star Boy; Origin of the Legion of Super-Heroes |
| 1/NS | Secrets of the Legion of Super-Heroes | Origin of Colossal Boy; Origin of Cosmic Boy; Origin of Duo Damsel; Origin of Legion of Super-Heroes; Origin of Light Lass; Origin of Lightning Lad; Origin of Lightning Lord; Origin of Phantom Girl; Origin of Saturn Girl; Origin of Star Boy; Origin of the Legion of Super-Heroes |