I'm with Alan Ross. Reader is singing the Robert Burns version here! Lady Nairn's version uses only the first verse and chorus of the Burns' lyric but the rest of her song is completely different. Hogg uses the first verse and chorus then again the rest is different but closer to the Burns' version than Nairn is. Burns was dead a good 20 to 30 years before these other versions were published by Hogg and Nairn. Hogg's notes states his version is altered from the original and that it was taken from hearing a woman singing it. As per the other two Burns wrote lyrics but also collected and often altered existing lyrics so it could be older still than him.