The New York Social Diary is a website that would not come up normally when looking for "name" train information. But, in the course of looking for information on the Santa Fe's Super Chief, that website is a treasure trove of period photos justifying the train's moniker as "Train of the Stars."
Bing Crosby:
Clark Gable and Ava Gardner playing gin rummy; Eddie Arnold watches; and below them, Douglas Fairbanks, Jr. and wife:
Kirk Douglas:
Alan Ladd:
Rosalind Russell:
Janet Leigh:
Jimmy Durante:
There are more photos in the article linked above for those interested; and, the write-up on the train that accompanies the photos is a nice synopsis of the Super Chief's origin and stature in that pre- and post-war era.
And to conclude this post with the emphasis on the train: