As to the original post, REALLY?
It's a dopey song, for heaven's sake.
BTW, lest anyone get all exercised about it, there was never any train called the "Chattanooga Choo Choo", nor was there ever a Track 29 in Pennsylvania Station. (The highest numbered track was and is 21 and was and is exclusively used by LIRR commuter trains. The lengthiest long distance limiteds generally used the middle tracks of the station, Tracks 11 through 14.