Hamilton & Scourge
The wrecks of the Hamilton and Scourge are rare examples of vessels used during the War of 1812. Designed as merchant schooners, both were converted into American warships once hostilities began and each played a role in the capture of Fort George on May 27, 1813. While stationed off Port Dalhousie, they capsized and sank with a loss of over 50 lives during a sudden squall in the early morning of August 8, 1813. Discovered 90 metres below the surface of Lake Ontario in 1973, these remarkably preserved wrecks are outstanding archaeological records of shipbuilding and naval warfare of their time.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.