New York Times coverage of the last run of the 20th Century Limited, the luxury train that ran between New York City and Chicago for 65 years. On its final run, it was half full. December 3, 1967.
https://timesmachine.nytimes.com/timesmachine/1967/12/03/84990019.html?pageNumber=31
"Widely considered to be one of the greatest American passenger trains of all time, the 20th Century Limited was the flagship train of the New York Central and was advertised as 'The Most Famous Train in the World'. It was described in The New York Times as having been '[...] known to railroad buffs for 65 years as the world's greatest train', and its style was described as 'spectacularly understated'. The phrase 'red-carpet treatment' is derived from passengers' walking to the train on a specially designed crimson carpet."
https://en.wikipedia.org/wiki/20th_Century_Limited
20th Century Limited