To return briefly to Christy Moore's claim to have written part of the text recorded by Planxty. At the time of the original question, I sat down to check through the whole thing, but quickly became bored. Since the thread has been revived, I'd just comment that the text of the Planxty arrangement follows very closely that used by Nic Jones, with the odd word changed or moved around here and there. The only parts which do not appear in the text recorded by Jones can be found in Child. It would appear that Christy's input here went no further than adding some material from elsewhere and changing a few small details. Hardly enough for a co-writing credit.