Dont know whether Wilf will appreciate these, seen multiple times many, many years ago: Incredible String Band, Pentangle, Fairport Convention, Steeleye Span, Renbourne, Jansch, Richard & Linda Thompson & Mayall w/Mark and Almond (& others at other times)
And, while I’m remembering very talented acoustic guitarists: Leo Kottke, David Bromberg, Michael Hedges and John Fahey. (and Jerry Garcia & Jorma K. of course).