Well, with the help of the good folks at the Society of Illustrators, I think we have found our man: he is none other than Edgar Franklin Wittmack. It's easy enough to see how that name could have been misread as Emar Williamson. I guess.
Wittmack did covers for The Saturday Evening Post and the adventure story pulps, but is best remembered today for the futurstic illustrations he did for magazines such as Popular Science.
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This looks like an absolutely TERRIBLE idea! |
The Society of Illustrators, located on East 68th Street here in Manhattan, has a wonderful museum space and is well worth a visit if you're in New York.