The medical strand in the MacCormac family began with Henry MacCormac, (1800-1886), the son of John MacCormac and Mary Ann MacCormac.
Henry MacCormac and Mary Newsam MacCormac were the parents of Sir William MacCormac, 1st Baronet, the most decorated surgeon of the late nineteenth century, who served as Serjeant-Surgeon to King Edward VII.