Not surprisingly, we may never know the origin of some bagpipes. More often than not makers did not leave identifying marks, or time and circumstances have removed the maker's stamp.
Turners sometimes made bagpipes for multiple makers or made bagpipes on the side. Sometimes they left and set up shop for themselves. All the while they took their personal preferences, tools, and skills with them.
Without hard evidence as to a particular maker, we can only add up the various clues and make an educated guess. The following bagpipes are all interesting. Until I'm able to authenticate them with significant hard evidence, their identities remain "unknown". There is no doubt that this directory will continue to grow. At the present time, there are 64 active links below.