also Action Comics (DC, 1938 series) #334
from Action Comics (DC, 1938 series) #252 (May 1959)describes meeting before Supergirl's existence revealed
from Action Comics (DC, 1938 series) #259 (December 1959)
from Action Comics (DC, 1938 series) #269 (October 1960) [2 pages removed in reprint]intro Jerro the Merboy
from Action Comics (DC, 1938 series) #261 (February 1960)1st appearance Streaky
from Action Comics (DC, 1938 series) #271 (December 1960)
from Action Comics (DC, 1938 series) #267 (August 1960)original pages 2-3 cut; 3rd app Legion of Super Heroes; 1st app Chameleon Boy, Colossal Boy, Invisible Kid
from Superboy (DC, 1949 series) #80 (April 1960)1 page cut
from Action Comics (DC, 1938 series) #285 (February 1962)single page excerpt
from Action Comics (DC, 1938 series) #292 (September 1962)1st appearance Comet