Jim Fina who researched the Burnett family, kindly sent me an email re locations of "British Family Antiquity; the Origins & Progress of the Rank, Honors, and Personal Merit of the Nobility of the United Kingdom", (edited by?) William Playfair, Esq. (pub. ?) Thomas Reynolds & Harvey Grace, 1811, which I have been trying to find to look at Adair information. Big thankyou to Jim. He notes that a quick check of the below on-line resources catalogs revealed that the Family History Center Library in Salt Lake City has all nine volumes of William Playfair's book in microfilm. That link is also:
I hope I have the addresses right for a change. At the top of each photocopied Idaho page is the heading "copied from material in the collections of the Idaho State Historical Society. User responsible for all copyright compliance".