Again I'm going to refer to Jeannie Campbell's Highland Bagpipe Makers. Jeannie's work, along with that of Keith Sanger and other researchers is invaluable it trying to understand the early commercial making of The Great Highland Bagpipe. I'm also going to to refer readers to The Piping Centre website to read Keith Sanger's outstanding paper, Two Edinburgh Bagpipe Makers.
Adam Barclay