Sometime between 1976-1978, I drove out there one day to have a look. The terminal was all locked up, but there was an open window or something and somehow I got in. By that time, it was in sad shape.
The only things I can remember were seeing some old Braniff posters above the ticketing area (too high for me to reach or I would have stolen them, LOL I was a teenager) and some signage for AA in the old eagle design.
I also remember walking down one of the 2 concourses. It was two levels and I was on the second floor. There were escalators every so often that led to the lower level that pax would take to the first floor, then walk out onto the tarmac and board the plane. I remember ceiling tiles wre falling out and were all over the floor up and down that councourse. I'd love to see what it looked like in it's heyday.