There's a whole Library of Congress file on the place from 1981 that I found today.
http://www.loc.gov/pictures/item/IN0223/Here it is.
"Shirley's Restaurant, a stainless steel diner located in Central Indiana, was manufactured by Mountain View Diners (Serial No. 420) in Singac, New Jersey. In 1952 it was transported to its present location. At that time, the owner, Mr. Rackley, Erected the adjoining masonry structure which houses the kitchen and restrooms. A year later, in 1953, the masonry dining room addition was erected. The diner itself is a typical example of this now-obsolete American phenomenon which dates back to the latter part of the 19th century.