I have a badly faded memory of riding the Southern Crescent while it was still being run by Southern Railway in defiance of Amtrak. I think it was in the 1970's, and I would have been traveling from California to somewhere in the Southeast. After doing some web research, I think I was on the Sunset Limited - Crescent thru-sleeper. I have just 2 vivid memories: creeping through the West Texas badlands on endless curves, and watching fresh food (including sides of meat, IIRC) being loaded onto the train, probably during the overnight in New Orleans. I also remember changing trains somewhere after NOLA, perhaps onto the Floridian at Birmingham on the way to a conference in Nashville. That was my first long distance train trip, and unfortunately my last until some 40 years later.I'm old enough to remember the great "liners" the extinct railroads had plying the country. I never traveled on one, but vowed I would take a long distance train some day. By the time I finally did, Amtrak had arrived.
Here's a timetable from that period that I found on the web: