Ake, the only version of Leaving Lismor (Fagail Lismore) that I have only resembles Lovely Stornoway, vaguely, in the last line. I know what you mean about Calum but in this case the song was written by Bob Halfin and Calum was given a half share when he agreed to record it. Bob Halfin did this with many of his songs including 'I'm a Pink Toothbrush, You're a Blue Toothbrush' which he split a few ways to include Max Byegraves!