Thank you very much, guys! I am excited to read about these heroes.
And if you do not mind...
I now have my cover to Volume One.
(for some reason, the cover easily tears off. I have owned two copies of the volumes and have the same results)
#1: Behind the "History of Comics 1" sticker is a hero dressed in light blue with a yellow "fin" on his cowl. Looks like he has a matching light blue cape. He is behind the letters "R" and "Y", and the $4.00 price. Behind Batman's cape.
And next to him is a red booted foot. I doubt this foot belongs to the blue uniformed hero. Would be amazing if jcolag could ID that foot!
#2 Behind Dr. Doom is a blond woman with a green veil, green glove and a green hat.
#3 A dark hair hero with a black domino mask, red cape, skull and crossbones as his chest emblem. Dressed in black.
#4 Back cover. Top middle. Red cowled hero with a red costume, yellow boots, yellow belt, blue truncks, blue and yellow cape, no gloves and the same type of wristbands that Captain Marvel sports.
He is in between the Blue Beetle and Robin.
#5 I take it the jungle woman on both volume's covers is not Shanna, but rather Sheena of the Jungle.
Thanks again, guys. You sure know your Golden Age heroes!