The bawdier version starts "As I came down yon water side", (Merry Muses of Caledonia) and the better known other, "Beneath a green shade". The latter is called "Peggy's Mill" on single sheet songs with music and with music in Walsh's 'British Musical Miscellany', I, p. 99, n.d. [1734]. Tune under this title is in Gay's 'Polly'. For a little over a dozen copies of the tune, some with the text, as "The Mill, Mill, O", see the Scots tunes index on my website. www.erols.com/olsonw