Thomas Mackay: The most famous Ottawan no one knows about.

 Thomas Mackay: The Laird of Rideau Hall and the Founding of Ottawa Author: Alastair Sweeny Publisher: University of Ottawa Press Paper ISBN: 9780776636788 In 1792 Lieutenant Governor of Upper Canada John Graves Simcoe invited American Loyalists north to speed up colonisation. Thomas Mackay: The Laird of Rideau Hall and the Founding of Ottawa