Great & Little Musgrave are near Kirkby Stephen off the B6529. Lord Barnard is still resident in nearby Raby Castle (great Xmas shop & dear park just off the A688 north of Staindrop) but a search for Bucklesfordberry on Google maps draws a blank... Seeking locations for ballads is always fun. I was brought up with the notion that Binnorie is a contraction of By Norham, which fits the geography quite nicely actually.