Or this one by Hank Williams...[found online]

PAN AMERICAN
Capo 0-2

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I have heard your stories about your fast trains
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But now I'll tell you about one all the southern folks have seen
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She's the beauty of the southlands listen to that whistle scream
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It's that Pan American on her way to New Or-leans.

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She leaves Cincinnati headin' down that Dixie line
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When she passes that Nashville tower you can hear that
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whistle whine
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Stick your head right out the window and feel that southern breeze
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your're on that Pan American on her way to New Or-leans.

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If your're ever in the south lands and want to see the scenes
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Just get your self a ticket on that Pan American Queen
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There's Louisville Nashville Montgomery the cap'tal of Ala-bam
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You pass right through then all when you're New Orleans bound.

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She leaves Cincinnati headin' down that Dixie line
       |A
When she passes that Nashville tower you can hear that
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whistle whine
                                                          |G
Stick your head right out the window and feel that southern breeze
       |A                                        |D
you're on that Pan American on her way to New Or-leans.