Quote Originally Posted by Morris of Heathfield View Post

There is also a Buccleuch tartan, ITI #647. This is the black and white tartan you mentioned, and also the tartan worn by the pipers of the Scottish Borderers, as cajunscot mentioned. It is also associated with the Haig family, due to a Haig who served as an officer in the regiment. I am not certain what the connection to the Dukes of Buccleuch is, if there is any.
See my post above, Morris. The check was worn only by one territorial battalion of the KOSB; the Leslie tartan is traditionally associated with the regiment.

If I remember correctly, the Haig in question would be Field Marshal Sir Douglas Haig. Since the KOSBs were a Border regiment, that would be the connection to the Dukes of Buccleuch.

T.