Castle Frank
The country home of Lieutenant Colonel John Graves Simcoe first Lieutenant Governor of Upper Canada 1791-1796, stood on these heights just south of this site 1794-1829. Named after Francis Gwillim Simcoe, son of Lieutenant Governor and Mrs. Simcoe, who died in the year 1812, serving under the Duke of Wellington.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.