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

Issue Details

Issue	#20
Published	March-April 1958
Cover Price	0.10
Pages	36
Editing	Whitney Ellsworth (editor), Jack Schiff, Murray Boltinoff, George Kashdan (all associates)

Cover Details - "I Was the Last Martian!"

Pencils	Bob Brown
Inks	Bob Brown
Colors	Jack Adler

8 page story "I Was Big-Game on Neptune"

Pencils	Jack Kirby
Inks	Jack Kirby
Reprinted	In Big Boy (Artima, 1956 series) #24 September 1958

8 page story "I Battled the Duplicate Men"

Genre	science fiction
Pencils	Ruben Moreira
Inks	Ruben Moreira
Notes	Title corrected per Ken Rowand, December 2008.
Reprinted	In Big Boy (Artima, 1956 series) #24 (September 1958)

Half page Giants of the Telescope filler "John C. Adams"

Genre	Fact
Notes	Information for this sequence from Arthur Lortie, September 2008. Sequence order corrected per Ken Rowand, December 2008.
Reprinted	from Strange Adventures (DC, 1950 series) #16 [recolored]

8 page story "I Was the Last Martian"

Genre	science fiction
Pencils	Jim Mooney
Inks	Jim Mooney
Reprinted	in Big Boy (Artima, 1956 series) #24 (September 1958); in DC 100-Page Super Spectacular (DC, 1971 series) #4 (1971)