And John Mearns recorded Bonnie Bessie Logan for an EP on the Scottish Records label called "Folk-Songs of the North-East", probably in 1960-65. The sleeve notes said:

"Little is known of Bonnie Bessie Logan. This version was taken down from an old lady in Montrose by John Mearns himself. The lady, who was eighty, said that she heard her mother sing it sixty or seventy years before."

... which would make the song at least a hundred years old.