Bob Roberts & Charlie Bate both accompanied themselves - but arguably this was revival influence. Certainly I'd always considered the English tradition to (almost entirely) be unaccompanied. Harry Cox knew his song tunes on both fiddle and melodeon - but not to accompany himself. Margaret Barry and Davie Stewart (hear, hear, Brian)both developed their accompanied performance style as street singers - it helps get the money! Belle Stewart used to sing some material accompanied by Alex on the chanter - but was that only in folk clubs?

And incidentally, Folkopedia is there to be edited - add others by all means!

Tom