The Camerons are of pure Celtic ancestry; and Cameron of Lochiel is the chief house of the Clan. Ewen, younger son of Ewen, 13th Chief of Lochiel, was the founder of the house of Erracht. Donald, 2nd of Erracht, joined Prince Charlie at Glenfinnan, where, under Lochiel, he was second in command of the Camerons.
His daughter married Cameron of Scamadale, and had a son, Lieutenant Alexander Cameron, who led the Camerons during the last three hours of Waterloo. His eldest son, Sir Alan Cameron of Erracht, K.C.B., went to America and with the 84th, or Royal Emigrants, helped to defend Quebec against Arnold.
In 1793 he raised the 79th or Cameron Highlanders. Sir Ewen Cameron of the main line-Lochiel-was one of the greatest cavaliers during the Civil Wars. His loyalty was perpetuated in Donald Cameron of Lochiel, one of Prince Charlie's staunchest friends in 1745. Achnacarry is the seat of the Camerons of Lochiel.

Chief: Cameron of Lochiel.
Patronymic: Mac-Dhomnuil Duibh.
Clan Seat: Achnacarry, Spean Bridge.
Slogan: Chlanna nan Con.
Plant : Oak.
Pipe Music: (1) The Camerons' Gathering. (2) Pibroch of Donnuil Dubh.