Many thanks for the correction, Jean.  I quoted the details as Peter Kennedy gave them in his book; evidently his memory failed him on this one!  I see what you mean about the great difference in tone between The Magpie's Nest and The Cuckoo's Nest;though the tunes are certainly close relatives, the songs really are, as you say, otherwise quite separate.  So far as attributions and sources go, I have to rely almost entirely on received information, so any further corrections or additional information you may have at any time, about anything at all, would be very welcome indeed.