Memorial Hall, 1906
This building, the first in Ontario to be constructed for use solely as an historical museum, was begun in 1906 and completed the following year. Its erection was due largely to the dedicated efforts of Miss Janet Carnochan, founder, and for thirty years curator of the Niagara Historical Society. Previously the Society had used a room in the Town Hall to preserve objects of this early Loyalist region. Donations were received from the federal and provincial governments, local municipalities, British regiments once stationed in the area, and private citizens. The museum was officially opened June 4, 1907, by Sir William Mortimer Clark, Lieutenant-Governor of Ontario.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.