14th – Walter Buchanan, (Guthrie Smith identifies him as 8th Chief and Buchanan of Auchmar identifies him as 15th Chief) married Isobel Graham and by her four sons (Patrick Smith identifies him as 9th Chief but then goes on to advise that the Chiefship passed from Patrick's father to Patrick's son and Buchanan of Auchmar identifies him as 16th Chief who married the daughter of the Earl of Argyle and by her had George who succeeded his grandfather; John first ancestor of cadets of Arnprior; Maurice; and Walter first ancestor of cadets of Spittal) and two daughters (Margaret and Elizabeth).