| Issue | #309 |
| Published | February 1964 |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Mort Weisinger |
| Characters | Element Lad; Chameleon Boy; Saturn Girl (all as the Legion of Super-Heroes); Superman; Batman; Robin [Dick Grayson]; Perry White; Lois Lane; Supergirl; Jimmy Olsen; Lana Lang; Lori Lemaris |
| Genre | Superhero |
| Pencils | Curt Swan |
| Inks | Shelly Moldoff |
| Reprinted | in Superman in the Sixties (DC, 1999 series) #[nn]; in Showcase Presents: Supergirl (DC, 2007 series) #2 |
| Characters | Saturn Girl; Bouncing Boy; Element Lad; Chameleon Boy; Sun Boy; Invisible Kid; Colossal Boy; Lightning Lass; Shrinking Violet (all as the Legion of Super-Heroes); Superman; Lois Lane; Lana Lang; Perry White; Jimmy Olsen; Batman; Robin [Dick Grayson]; Pete Ross; Lori Lemaris; Police Chief Parker; Krypto; Comet the Super-Horse; Streaky the Super-Cat; Super-Monkey; The "Look-Alike" Squad of Kandor; The Jimmy Olsen Fan Club; Martha Kent (statue); Jonathan Kent (statue); Bizarro (statue); Bizarro-Boy (statue); Lex Luthor; Superboy (flashback); Gold Kryptonite; President John F. Kennedy |
| Genre | superhero |
| Script | Edmond Hamilton |
| Pencils | Curt Swan |
| Inks | George Klein |
| Notes | This comic actually appeared on the newstands approximately one month after the assassination of John F. Kennedy, who is featured as a character in the story. Info by Bob Bailey, 2005-03-19 (Per Sandell ed.) |
| Characters | Supergirl (origin); Zor-El; Allura; Dick Malverne; Comet the Super-Horse; Fred Danvers; Edna Danvers; Fortress of Solitude; Phantom Zone; Kru-El; Dr. Vakox; Jax-Ur; Jer-Em; Jor-El (flashback); Superman (flashback); Survival Zone |
| Genre | superhero |
| Script | Leo Dorfman |
| Pencils | Jim Mooney |
| Inks | Jim Mooney |
| Notes | Kryptonian parents revealed as being alive, origin recap. |
| Reprinted | in DC 100-Page Super Spectacular (DC, 1971 series) #DC-10; in Adventure Comics (DC, 1938 series) #416 (March 1972); in Showcase Presents: Supergirl (DC, 2007 series) #2 |