Leeneia, I am always reluctant to change the lyrics of songs. My job here is to make sure the lyrics we have are authentic, that they come from an early or original source or at least someone authoritative.
Here we have versions by Katie Lee and Utah Phillips. It would be nice to find a documented text from the author himself.

I dunno. I like the concept of red mud walls because I saw them all over New Mexico, and they go back to the times before Columbus.

-Joe-