Question: New York to San Francisco via Chicago in 1947

I am currently researching material for my next novel and desire some information pertaining to the train route from New York to San Francisco via Chicago in 1947. I have a questions concerning train lines and routes, compartment configuration, meals, sleeping facilities, and stop-overs. Who can I contact for this information? Thank you.

—Pauline Furey
paulinefurey@bellsouth.net