I'm sure you're all already aware of this, but I recently stumbled onto a site that allows you to download goldenage comics deemed to be public domain for free. Among them, Mary Marvel. Find her here and see where it all began:
digitalcomicmuseum.com
She's under Fawcett comics with her own title. She also appears in WOW, but not in the earlier issues.
Oh yea, you'll have to register before you can download.
They're goldenage comicbooks, so it what it is. But I do recommend giving it a look.
...but you probably already knew that...
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