Here's how I used to play this song in the 70's, with Toronto folkies Rick Speyer, Ron (Mr.Metronome)Sherwin, and Al "Captain" Brady --aka "Ditch Diggers & the Driller" .

This is a simplified version, you can add other chords, but this sounds good as it is!
I chorded this in key of G. I'm not sure what key Hoyt did it in, my record player ain't currently hooked up...

Enjoy,
Rich ("Ditch") McCarthy


VERSE

                                             
(G)And I dream in the (Em)morning, (D)that she brings me (G)water
      
And I dream in the (A)evening, that she brings me (D)wine
                                                      
Just a poor man's (G)daughter--(C)-- from Porto Pen(G)ãsco
                                    
South of the (D)border—(C)-- in Old Mexic(G)o



CHORUS
                                                            
And the f(D)ire I feel for that woman I love it's dr(C)ivin' me ins(G)ane
                                          
Knowin' she's w(D)aiting --(C)--I can't g(G)et there
                                                         
G(D)od only knows that I'll wrack my brain, to t(C)ry to find a w(G)ay
                                    
To reach that w(D)oman --(C)-- in Old M(G)exico