That was from Sam Larner of Winterton, Norfolk, 1958 (Singing Island, p 22). I don't think that Lloyd was the "collector"; MacColl merely quotes a comment of Lloyd's from the Journal of the English Folk Dance and Song Society on the subject of the river name, which had been made with reference to Harry Cox's set. It will have been Sam's set that Martin Wyndham Reed sang, I think. Beside Harry Cox, Walter Pardon also sang it; in the late 1970s, Jim Carroll and Pat MacKenzie recorded it from two other singers at Winterton. They had, presumably, learned it from Sam. The Roud Folk Song Index lists it at number 1872; it has also turned up in Newfoundland and Arizona.