E is for Emily the pride of Penwith.

Penwith is historically claimed to be the whole area of Cornwall West of Redruth.
In early Norman times the Lord of Penwith had his manor at Connerton, near Hayle. And, being a good lad it seems he employed (at least) one musician 'Robert le tabourer' being mentioned in the Arundell papers before c. 1200-1230.

West Penwith is the Peninsula West of Penzance plus whatever the politicians decide of the rest of Cornwall.

There were several mines called Wheal Emily in both Cornwall and West Devon. The Wheal Emily of the song (perilously close to West Wheal Fanny) is not far from Gwithian and shafts and an adit remain. I think they were worked-out quite early on.