Concerning the above interest in "Moll Roe/Lady Monroe," etc., nearly 100 years ago P. W. Joyce gave the following unexplained couplet in his book "English as we Speak It in Ireland" :

             Wor you at the fair - did you see the wonder?
             Did you see Moll Roe riding on the gander?

Joyce, better known for his "Old Irish Music," was not the sort to allude to a bawdy ballad, and the goose-riding Moll sounds like a different person altogether. But was there more to this rhyme? What's it about, anyway?