Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue #334
Published July 1965
Cover Price 0.12 USD
Pages 36
Editing Mort Weisinger

Cover Details - "The Unknown Legionnaire "

Characters Legion of Super-Heroes [Mon-El; Supergirl; Light Lass; Superboy; Brainiac 5]
Genre superhero
Pencils Curt Swan
Inks George Klein
Letters Joe Letterese
Reprinted in Legion of Super-Heroes Archives, The (DC, 1991 series) #4; in Showcase Presents: Legion of Super-Heroes (DC, 2007 series) #2

17 page Tales of the Legion of Super-Heroes story "The Unknown Legionnaire"

Characters Legion of Super-Heroes [Superboy; Brainiac 5; Saturn Girl; Sun Boy; Supergirl [also as Unknown Boy]; Cosmic Boy; Chameleon Boy; Phantom Girl; Mon-El]; Norm Eldor
Synopsis Superboy recalls a case when the Legionnaires were helped by a hero called Unknown Boy. It was only after Unknown Boy helped the Legion finish a case, that Superboy figured out that under the costume was Supergirl. Supergirl then recalled going through a red kryptonite cloud and losing her memory, but knowing she had to protect her secret identity, and so created the Unknown Boy costume.
Genre superhero
Script Edmond Hamilton
Pencils John Forte
Inks Sheldon Moldoff
Letters Vivian Berg (part 1); Milton Snapinn (part 2)
Editing Mort Weisinger
Reprinted in Best of DC, The (DC, 1979 series) #64; in Legion of Super-Heroes Archives, The (DC, 1991 series) #4; in Showcase Presents: Legion of Super-Heroes (DC, 2007 series) #2

8 page Superboy story "The One-Man Baseball Team"

Characters Superboy
Genre superhero
Script Otto Binder
Pencils Curt Swan
Inks John Giunta ?
Editing Mort Weisinger
Notes inker id by Bob Hughes 3/09
Reprinted from Superboy (DC, 1949 series) #57