Well, a lot of mine have been said already. I need two lists:

Musicians:

Stan Rogers
Kate Wolf
Steve Goodman

The news had come by sometime back, when a rider stopped to say,
Big North, young Kate, and the Goody boy had up and passed away...

- Christopher Shaw; "The Year of '88"

Hank (the real one)

Elvis
Janis Joplin

(Yes, both of them were pretty well burned out well before they died - but I think of the burning out process as part of the dying. You can commit suicide with drugs either with one big dose or a lot of little ones.)

Clarence White (and not because of his electric rock stuff - although there was nothing wrong with that either)

Buddy Holly

Waylon Jennings
John Duffey

(Yes, they both lived into their 60s. But I'm in my 60s, so I consider dying in said decade premature. And I miss both of them.

To be continued.

Peter.