The on-sale date is the publication date reported in the U. S. Copyright Office filing and Comic Reader #141.
Colors credit provided by Anthony Tollin.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Letters of comment from Bob Rodi, Mike Kinyon, Kent Farris and Paul Ortega.
The letter column reveals that Ivy Town is Boston and that Midway is Chicago.