There is a site archived in the Wayback Machine that has many of these. If everthing works correctly, you should find it at:

http://web.archive.org/web/20010603060726/members.nbci.com/jeremyray/texas/jerry_jeff_walker/index.html

I also list 15 of them on my Songbook page at:

http://rsbassociates.home.mindspring.com/songbook.htm

where you can request eMail copies.