From The Vaults: Roy Thomas 1965
The article covers Roy's involvement in the fanzine, Alter Ego, while he was teaching English Literature at Fox High School in Arnold, Missouri. Roy had just taken over the publishing of the magazine from the legendary Dr Jerry Bails, and was running with it. Of interest is that, in the last paragraph, there's mention of an offer that Roy had just received an offer to become an editor for a comic book company. That company was none other than DC Comics. One month later Roy had visited, been hired by Mort Weisinger, quit and was working for Marvel Comics.
The rest, as they say, is history.