Gananoque
A vulnerable point on the vital line of supply from Lower Canada in the war of 1812-14, Gananoque was raided on the 21 September, 1812, when the bridge was destroyed. Subsequently fortified by the Leeds Militia and garrisoned in turn by the 104th, 41st, 89th, Canadian Voltigeurs, Royal Newfoundland, 57th and 70th Regiments, with Royal Artillery support, it became the base for a division of gunboats cruising among the Thousand Islands for the protection of transport.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.