as i recall his son did a documentary movie on him not long ago..
http://www.townesvanzandt.com/
http://www.townesvanzandt.com/documentary.html

and just yesterday i was watching a video of nanci griffith that
had a clip of him saying he like her cover of his song...i think
i found the you tube link connected to a yodeling thread on here
(where Don Edwards and Nanci were singing Night Rider's Lament)
I will see if i can re-locate it.

she starts out "my middle name is Caroline" Tecumseh Valley here:
http://www.youtube.com/watch?v=DXMTq9hJ3Ow&feature=channel

here is Townes singing that song
http://www.youtube.com/watch?v=_rq5GsZHd0Y

(did you know that Lupe and Lil from the song If I Needed You
were parakeets?)