(Library of Congress 1956)
Art by Everett Henry (1893-1961).
Part of a series of literary maps commissioned by Harris-Seybold Company of Cleveland between 1953 and 1964.
Click the image for a larger aspect.
The University of Chicago Press has a version where you can click, drag, and enlarge details here: http://www.press.uchicago.edu/books/akerman/figure147.html