GUEST,Gibran Lewis, although this should likely have a thread of its own, I am posting the link which I think takes the song back to about 1880. It is no doubt older than that and I'll look further, but there are some well-informed people on this site and I expect you'll get a bunch of info over the next few days from them.

https://books.google.ca/books?id=jn1AAAAAYAAJ&pg=PA498&lpg=PA498&dq=%22the+miller%27s+lovely+daughter%22&source=bl&ots=NmDMKvvqR