While the intro and chorus of this song start with an A minor as you'd expect from the progression, note how the verses start with D minor instead. D minor is the subdominant note in the key of A minor.
Dm F
In the tiny town where I come from
C G
You grew up doing what your daddy done
Dm F C
And you don't ask questions, you do it just because
Dm F
You don't climb too high or dream too much
C G
With a whole lotta work and a little bit of luck you can
Dm F C
Wind up right back where your daddy was
Am F
This little bitty town It aint nothin new
C G E7
We all stick around 'cause they all tell us to
Am C
Swallow your pride just to make your family proud
G F
If I didn't think that it would shut the whole place down
F G Am
I'd ride my pony right out of this one horse town
C
Yeah, this one horse town
Dm F
I'm an old married man at the age of 23
C G
Got two little boys on the baseball team
Dm F C
And that might be their only ticket out
Dm F
All they got is a worn out name
C G
and a daddy that could have gone all the way
Dm F C
but I hung my saddle up and I settled down
Am F
This little bitty town It aint nothin new
C G E7
We all stick around 'cause they all tell us to
Am C
Swallow your pride just to make your family proud
G F
If I didn't think that it would shut the whole thing down
F G C
I'd saddle that one horse and ride it right out of this town