GM&O E-7 #102, Joliet, IL, July 11, 1965, photo by Chuck Zeiler

GM&O E-7 #102, Joliet, IL, July 11, 1965, photo by Chuck Zeiler

According to the June 1965 edition of The Official Guide, this was Train #1, "The Limited, Air-conditioned Diesel-Electric" service daily to St. Louis, departing Chicago at 11:15 AM, arriving in Joliet at 11:55, arriving at St. Louis at 4:43 PM. It's counterpart, Train #4, the northbound "The Limited" departed St. Louis at 3:40 PM, and the two trains met daily at Granite City. The following was also advertised on page 412 of The Offical Guide:

"All Parlor Lounge Cars Trains 1-2-3 and 4 are owned and operated by the G.M.& O.R.R.

All through Gulf Mobile & Ohio trains are air-conditioned and diesel-electric powered.

Trains 1-4 - The Limited
Chicago - St. Louis
Parlor Car with Drawing Room
Dining - Lounge Car, Reclining Seat Coaches

The GM&O also hosted two other daily trains to St. Louis; "The Abraham Lincoln", and, of course, "The Midnight Special".