The correct spelling of the actor/director/writer's name is SAM SHEPARD.His web site at Bucknell University is here.
To see his entry at the Internet Movie Database (IMDb) click here. It doesn't list all his plays, though.
For Rykodisk's description of the album "A Lie of the Mind," click here.
Sam Shepard lives with Jessica Lange in Stillwater, MN.