I posted this about a week ago on another thread - the author is a forum member:
"Thanks for a great read! Anyone who likes Amtrak trains and has not read that book, it is highly recommended.
Edit: "Zephyr: Tracking a Dream Across America", by Henry Kisor
Random House, 1994 "
Another Edit - after posting this, I went to the library and got the book out again, and I am about 3/4 of the way through it. What a great book - he's a very good writer, a real pro - and gives some interesting facts about how Amtrak was in the 90's that I didn't know (or had forgotten).
Thanks again, Mr. Kisor!