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Davey Graham RIP
http://www.guardian.co.uk/music/2008/dec/16/folk-legend-davey-graham-dies
Not sure how much of a DiS-type artist he was, but he was a really significant player in the British folk revival, and a huge influence on the likes of Bert Jansch, Paul Simon and Jimmy Page.
His 60s stuff is well worth checking out - kinda like a British John Fahey, with a bit more of a jazz influence.