There is little biographical information about Mizen on the Internet, and this seems to be the most comprehensive source.
Today's post presents some of his non-Chevrolet illustrations.
The setting is the Yellowstone National Park lodge near Old Faithful geyser. That gent in the foreground is drinking Coke. Nobody seems interested in Old Faithful.
In the background is the Empire State Building that opened the previous year.
Illustrating a Post cover put an artist into The Big Time, professionally.
Another Post cover.
Somewhere out west in the desert area there are few rivers wide and deep enough for such a boat, so I'm not sure where this scene takes place.
Well, this helped put food on Mizen's table.
An example of his early illustration work.
This illustration used plenty of good, painterly brushwork, and can be considerably enlarged if you are using a desktop computer.