The Tigress and Scorpion
In September, 1814, seamen of the Royal Navy under Lt. Miller Worsley, after a memorable voyage in an open boat from Nottawasaga Bay to Mackinac, aided by soldiers of the Royal Newfoundland Regiment commanded by Lts. Armstrong, Bulger, and Radenhurst, captured the United States ships of war TIGRESS and SCORPION. In compliance with the Rush-Bagot agreement these ships were sunk in Penetanguishene Bay.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.