Capture of the "Somers" and "Ohio"
On the night of August 12, 1814, seventy seamen and marines, led by Captain Alexander T. Dobbs, R.N., embarked in this vicinity to attempt the capture of three armed U.S. schooners lying off American-held Fort Erie. One of the six boats used had been carried some 40 km from Queenston, while the others were brought overland from Frenchman's Creek. Masquerading as supply craft, the force boarded and seized the "Somers" and "Ohio", the "Porcupine" alone escaping. Two of the attackers, including their second-in-command, Lieutenant Copleston Radcliffe, R.N., were killed. This daring exploit was the last naval action fought on the Great Lakes during the War of 1812.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.