Ok folks, I'm going to turn this compost pile over one more time.
I can think of three real trains that preceded the songs written about them. They are:
City of New Orleans: Illinois Central New Orleans - Chicago
Midnight Special: Gulf, Mobile & Ohio St Louis - Chicago
Orange Blossom Special: Seaboard Airline Miami - New York.
Were there any other REAL trains that had mainstream hit songs written about them.
Repeat: REAL trains that had mainstream hit songs written about them.
NOT: Wabash Cannonball, Blue Water Line, Casey Jones or The Wreck of Old 97.
This should be taken to mean that the train came before the song.