Re Union Stations From Derek Boles, Toronto Railway Heritage Moderator "June 13, 1872: The cornerstone is laid for Toronto's second Union Station. The city's first Union Station, built in 1858, had been demolished in 1871 and construction began on this much more elaborate edifice located at the same site along the Esplanade between York and Simcoe Streets but occupying most of the block. For two years a temporary shed located west of Simcoe Street served as the Grand Trunk Railway's Toronto station. The 2nd Union Station was designed in the Italianate style by architect Thomas Seaton Scott, who later designed the Grand Trunk's Bonaventure Station in Montreal. The builder was John Shedden & Co. and the Chief Engineer was the GTR's E. P. Hannaford. The station opened for business on Dominion Day in 1873 and was extensively remodeled in 1895, although the original headhouse remained largely intact. The structure was demolished in 1927-28 after the opening of the present Union Station." I have asked Derek to respond here as well.