Trillium
The Toronto Ferry Company's new steam ferry Trillium, built by Polson Iron Works, was launched 18 June 1910, and two weeks later she began 46 seasons of carrying pleasure seekers across Toronto Bay. In 1926 she was purchased by the City for the Toronto Transportation Commission. Following her retirement from regular duty in 1956 she was purchased by Metropolitan Toronto and towed to an island lagoon near Gibraltar Point Lighthouse, where she remained for sixteen years. The efforts of concerned citizens resulted in the approval of funds by Metropolitan Toronto Council for her restoration, completed 7 November 1975.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.