I used to have Norman Kennedy singing "Sleepytoun" on a various artistes LP released around 1966. The only other artiste that I can remember being on the record was Gordeanna McCulloch, singing, I think (!), "Dowie Dens o Yarrow". Norman also did a terrific version of another bothy great, "Drumdelgie", now available on CD.
(Look out also for recordings of bothy ballads by Joe Aitken of Kirriemuir - saw him at Celtic Connections a couple of years ago).