I realize this post is over a year old, but I will comment still - on chance you may still be checking on replies. There IS an ancient MacBraire family dress tartan. It was rediscovered about 20 years by a lady in Scotland. She consigned with a weaver in England to weave a bolt of the cloth. It was woven in the exact same thread count and muted colors as the olden tartan before it was outlawed so many hundred years ago. It is a beautiful white, red and green with other pastels included. Our tartan is not listed in any of the tartan books and is only available from one source - the lady in Scotland. I will be happy to provide her address and a picture of the material if you will send me your email address. There is also a modern Macbraire hunting tartan of browns, red and green, but it was developed in the past 20 years.