All the verse are the same chord progression

 
( G5 )   ( D5 )        ( E5 )     ( C5 )
I walk down that lonesome line 
( G5 )          ( D5 )   ( G5 )
Hung down my head I cry 
        ( D5 )            ( E5 )   ( C5 )
I wept I cried under the willow tree
( G5 )         ( D5 )     ( G5 ) 
About the deep blue sea 


My mama my dead papa 
Can be found 
And my brother 
On the county road 

Now I've been down that long plank walk 
I'm on my way back home 
You cause me to weep you did cause me to mourn 
You cause me to leave my home 

Your fast mail train coming round the track 
Come kill my little blue-eyed girl 
They took her down that smoky track 
Brought her back on that cooling board 

I'm looking down that long tunnel light 
Just as far as I care to see 
I have no money lost my blue-eyed girl 
These blues won't set me free 

You did cause me to weep you did cause me to mourn 
You cause me to leave my home 
I cried last night and the night before 
I swore not to cry anymore