That's an interesting broadside, Richie. I've tended to regard 'Cambric Shirt' as a different ballad to 'Laird of Elphin', although it includes many of the same tasks. Is this 1780[?] BS the earliest text we have for the 'Cambric Shirt' strain?

However, looking at the Carpenter texts, Robb's is obviously 'Laird of Elphin', but the others appear to be 'Cambric Shirt' - though they include a girl called Nell who, like the Elphin Knight, lives on a hill. Very confusing.