If you read the whole of this thread, you'll see that most of the words communicated to Dominic Behan by Peter O'Toole mirror those of the macaronic 'Do bhí bean uasal' or ;Young sick lover' referred to and quoted above. There is no evidence that there ever were two songs from which Carrickfergus was contructed. Instead we have a fragment remembered by a actor who heard it in childhood which has been added to and adapted by several hands, minds, and imaginations since then. Careful reading and research are the only tools that will help anyone who wants to disentangle the strands - in this they have my blessing; however, conjecture and guesses, unless founded on fact and evidence, are of no blessed use whatsoever.