The intro part (which is played a few times throughout the song) goes something like;

E--4-2-0-7-0-0-2-0-
B------------------

But I'm not sure exactly what the acoustic is playing during that. I just play it as
below, leaving out the little riff. For the E Esus4 E parts, the Esus4 is played just
once. For the C# D parts, the C# is played just once as you move up from the B to the D.

E    : 022100
Esus4: 022200
E7   : 022130
A    : x02220
B    : x24442
C#   : x46664
D    : x57775

Intro: E Esus4 E (x4)

E7                      A                   E7
Well, the train touched down in Sioux City, Iowa
                  A                   E7
The train touched down in Sioux City, Iowa
        B
It fell cleanly from the dark sky onto the track
C# D                              A               (E Esus4 E) x4
Saw you from the window there was no turning back
E7                     A                                 E7
Well, the whistle went off, I was leaning up against the window
                       A                                 E7
Yeah, the whistle went off, I was leaning up against the window
         B
I saw familiar passengers walking past me
C#  D                 A       (E Esus4 E) x2
And you called up the calvary
       B
It was so easy and it was so hard
    C#   D                      A
You were clutching your copy of Kierkegaard
    E Esus4 E
Repetition
    B     C# D A E
Repetition

Outro: E B A E (a few times)