Hector Russell formed a partnership with Jack Dunbar, Thomas Maitland, and (?) Liddell (his first name escapes me!) for the purpose of making a bagpipe under the name Hector Russell.
This partnership lasted less than two years before Dunbar, Maitland, and Liddell went off to form Piobmor Highland Industries. The early Hector Russell bagpipes were "Henderson" inside and out.
After their departure, other makers were employed and the bagpipe changed completely.
Please feel free to send me pictures of your Hector Russell bagpipe.