- Script:
- Roy Thomas
- Pencils:
- Chuck Patton
- Inks:
- Romeo Tanghal; Pablo Marcos
- Colors:
- Gene D'Angelo
- Letters:
- David Cody Weiss
- Job Number:
- J-8798
- Genre:
- superhero
- Characters:
- Justice League of America [Red Tornado; Flash [Barry Allen]; Green Lantern [Hal Jordan]; Zatanna; Firestorm; Black Canary [Dinah Laurel Lance] (first appearance); Elongated Man; Superman (Earth-1) (cameo); Green Arrow (Earth-1; flashback)]; Justice Society of America [Superman (Earth-2; flashback); Flash [Jay Garrick]; Power Girl; Hourman [Rex Tyler]; Huntress [Helena Wayne]; Starman [Ted Knight]; Johnny Thunder's Thunderbolt; Johnny Thunder (Earth-2); Black Canary [Dinah Drake Lance]; Hawkman [Carter Hall] (flashback); Atom [Al Pratt] (flashback); Green Lantern [Alan Scott] (flashback); Wonder Woman (Earth-2; flashback); Dr. Mid-Nite (flashback)]; Spectre [Jim Corrigan(Earth-1)] (cameo); Sargon The Sorcerer; Crime Champions [Chronos; Fiddler; Icicle; Dr. Alchemy; The Wizard; Felix Faust]; Johnny Thunder (Earth-1; villain); Thunderbolt Dimension denizens; Aquarius (flashback); Larry Lance (flashback; death)
- Synopsis:
- Earth-1's Johnny Thunder reveals the origin behind the 2nd Canary, placed in limbo by Earth-2's Johnny Thunder at the Earth-1 Superman's request following their battle vs. Aquarius, since Aquarius's radiation was killing her as she crossed to Earth-1 after her husband's death. She was then replaced by her daughter, whose memory had been replaced by hers. The heroes defeat the Earth-1 Thunder alongside the Earth-2 counterpart, while the revived JLA aid their JSA allies on Earth-1. The current Canary has her original memory restored and leaves with the Earth-1 Superman back to Earth-1.
JLA-JSA team-up conclusion. Origins of both Black Canaries this issue.