I don't think I'd even heard of "Jack Orion" until this thread.

I looked for it on YouTube. The Pentangle version is unlistenably self-indulgent rubbish (like virtually all the output of the English electric-revival crowd). The Jansch one has a tasteful accompaniment, but he put zero effort into the vocals - I can't decode enough of that mumbling to tell what's going on in the story.

Is there a clearly sung unaccompanied or minimally accompanied version out there somewhere?