There are LOTS of factual errors and oddities in this set-
2        Aqualad        Aqualad changed his name to Tempest in the mid-1990s. Of the other characters who changed names included in the set, he is the only one that is given a card using the old name, not the current at the time name.
12        Dr. Fate        Hector Hall is Dr. Fate V, not III
13        Dr. Mid-Nite        Pieter Cross is Dr. Mid-Nite III, not II
20        Kid Flash        Bart Allen's first appearance is incorrect
22        Nightwing        First appearance is incorrect, actual first appearance for first version of Dick Grayson is on card #25
26        Captain Marvel        Due to licensing issues, the character's name cannot be used on cards or even the comics the cards pull from.
28        Speedy        N is left off of Mia Dearden's name
30        Supergirl        The character on the back of the card is not Supergirl, but a dream Superman had during 1958.
32        Flash        Wally West's first appearance is incorrect, the correct first appearance is shown on card #20
33        Wonder Girl        Second "s" in Sandsmark is capitalized for no reason
40        Cheetah        Barbara Minerva is Cheetah III, not Cheetah II
46        Reverse Flash        The character on the card front is not Reverse Flash, but Zoom, a villain who adopted the Reverse Flash's costume (with some minor changes)…the text does not mention the later character.
The series also disregards the fact that there have been three distinctly different versions of Superman, Batman, Wonder Woman, Captain Marvel, Captain Marvel Jr, Aquaman, Supergirl, Plastic Man, Lex Luthor, Black Adam, Penguin and Two-Face and two different versions of Brainiac and Poison Ivy and multiple versions of Hawkman.