I thought I'd start this, since Porter is a Grand Ole Opry member, and a part of the Country Music Hall of Fame. He died Sunday at the age of 80.
http://www.newschannel5.com/Global/story.asp?S=7277894
He had just been diagnosed with lung cancer. He was the one responsible for giving Dolly Parton her start (without him, you essentially wouldn't have Dollywood, because you wouldn't have Dolly).
I had the opportunity to meet him at the gate while we were awaiting our flight (we were on the same flight to NYC... mine was for business though, he was going to perform there). He was frail and in a wheelchair then, and I left him alone while others hounded him for his autograph. We did exchange head nods, and that's about it.
I'm surprised no one started this thread, and noted the connection with Dolly.