Dugald [MacTavish] was placed as the “Sheriff-substitute” of Kintyre, and built “Kilchrist House” (now referred to as Kilchrist Castle) in 1824. His wife, Letitia Lochhart, bore him 10 surviving children. The first born, Lachlan, died at birth. The second son, William (1816-1870) at age 18 immigrated; sailing in 1833 to Canada with the Hudson Bay Company as a company clerk and took up his duties at Fort Garry. He succeeded as Chief on the death of his father, Dugald, in 1855. William rose within the company to be appointed as Governor of Assinaboia and Ruperts Land and was instrumental in the formation of events leading up to the confederation of Canada in 1867, with John A. MacDonald, first Prime Minister of Canada.
Dugald MacTavish is the father of Letitia Hargrave