The Tartan Buchanan. the clan septs and spelling variations include Baskin, Bonnieville, Buck, Cawsell, Chapp, Clapperton, Costy, Crystal, Donleavy, Dowe, Fasken,  Gammery, Gibb,  Hardin, Harper, Leisk, Lenny, Macaldonich, MacAusland, MMacChruiter, MacColman, MacCormack, MacKinley, MacMaster, MacMaurice, MacWhirter,  Mundy, Murchie, Nible, Ogstone, Prince, Ratcliff, Risk, Ruskin, Shakle, Tarvis, Wadsworth, Watson, West, Yule