clan was documented within an historical account of Lewis written by John Morrison of Bragar, 'Indweller' of Lewis. The Indweller wrote this account sometime between about 1678 and 1688 and stated that the early inhabitants of Lewis were three men from three separate races. The 19th-century historian F. W. L. Thomas noted that the Indweller's traditional account was partly at odds with the traditions current in the 19th century. The 19th century tradition was that the heiress of the Morrisons would only marry a Morrison, and that Cain, who was a Macdonald from Ardnamurchan, passed himself off as a Morrison and consequently became her husband and thus brieve. Thomas noted that it was claimed that Iain Sprangach, founder of the MacDonalds of Ardnamurchan, came to Uist and married a daughter of Macleod of Harris, and had a son named Murdo. Thomas considered that it was from this son that the Indweller's Makurich was derived. Thomas also noted that it was claimed that Aonghus Óg of Islay married a daughter of Guy O'Kaine. He also showed that this marriage is confirmed by the 17th-century Irish genealogist Dubhaltach Mac Fhirbhisigh, who wrote that the mother of John Mac Angus of Islay was Aine, daughter of Cumhaighe O'Cathain. Thomas maintained that it was through this marriage that the name Cain passed to the Macdonalds, and through them to the Lewis Morrisons, who still used it in the 19th century. Thomas concluded that the Indweller's Kenannus whom the Irish historiance call Makurich equated to Cathan Mac Mhurich. He considered that this man was the son of the Murdo who was the son, or grandson, of Iain Sprangach, founder of the MacDonalds of Ardnamurchan. It was from Cathan Mac Mhurich, Thomas stated, that the chiefly line of the Lewis Morrisons descended. Thomas also noted that the Harris Morrisons claimed to descend from the original stock of Morrisons. According to the Bannatyne Manuscript The Bannatyne Manuscript dates from about 1830 and is thought to have probably been written by Dr. William MacLeod Bannatyne. Within the manuscript is an account of the origins of the Lewis Morrisons: History The first Morrison on record is Hutcheon (Scottish Gaelic: Ùisdean), a contemporary of Rory MacLeod, the last chief of Clan MacLeod of Lewis. Hutcheon held the hereditary office of brieve, on Lewis. The Morrisons were also dominant in Durness (within "Clan Mackay Country"). According to tradition, Ay Mac Hormaid