In the 1990s Clifford Glenn's daughter, Lisa Glenn Thompson, self-published an instruction booklet for the mountain dulcimer.  If anyone has a copy they are willing to sell, I am interested in obtaining a copy.  Alternately, if you have a copy that you don't wish to sell perhaps you'd be willing to make a xerox copy for me.  If you are able to help or wish to sell your copy of the instruction book, you can reach me by e-mail at:

gregory52gunner@gmail.com