Who are the authors on the side of the building in Old Town?

James Baldwin, Earnest Hemingway, Upton Sinclair, Virginia Wolf, John Steinbeck in that order.

I don't know. Next time I will look too see who the authors are.

Im not sure exactly. But if you look east from LaSalle, you can see the list painted on the side of the building

You mean at Salvation Army Store? It should have a tag on it, to say.