Mary Brooksbank says on a School of Scottish Studies recording that she heard the Dundee mill lassies saying / singing [can't recall which] the first two lines
'Oh dear me -- get their rest'
and she wrote / added the rest.
My own song Shift and Spin 'borrows' some terms from her song.
It is astonishing to me how often publishers assert song ownership on behalf of singers who know and say better.
But some arrangers are as bad. There's one who claims to PRS to have written Coulter's Candy, a song I've traced back to the obituary of the composer Robert Coultart in the 1880s.