Yes, Sydney Carter is a great singer. He still does the odd gig, at the age of 83. He doesn't have a technically good or even 'nice' voice, but he can put character into a song and make it come alive. If you attend record fairs, it is WELL worth looking out for what I think is his best recording, 'Sydney Carter and Jeremy Taylor at Eton'. It's a live LP and rather wonderful. I doubt it will ever, sadly, be available on CD. Ah well.
Joe, I'm looking up the HTML ref. you've given, and will read it before I post the Farewell But Whenever tune and others. Cheers