Thorold Tunnel opening ceremony photographs, September 18,1968.

Construction on the Thorold tunnel began in 1965 and was completed in 1967. It was designed by H. G. Acres & Company Ltd. and built by Pitts-Atlas, a joint venture of C.A. Pitts, General Contractor Ltd., and Atlas Construction Company Ltd. The tunnel replaced two lift bridges (Bridge 9 at Ontario Paper Co. and Bridge 7) that carried traffic over the Welland Canal. The majority of the construction occurred during the winter months, when the canal was closed to shipping. The water was drained and concrete sections shaped liked tubes were poured, creating the tunnel. During the summer months, the end sections of the tunnel were constructed so that shipping could continue uninterrupted. The 24 million dollar project was financed jointly by the Department of Highways and the St. Lawrence Seaway Authority. The tunnel was officially opened on September 18, 1968.

Letters - Correspondence with John Diefenbaker, 1968

There is a telegram from John Diefenbaker congratulating Sean O'Sullivan on his recent election win as President of the Hamilton Young Progressive Conservatives. O'Sullivan was in Grade 11 at the time. The second correspondence is a reply from Sean O'Sullivan with appreciation to Diefenbaker for all his "encouragement and inspiration". The correspondence took place 19 March 1968 and 20 March 1968.

Letter - Sean O'Sullivan to J. Diefenbaker, April 1968

The letter begins by thanking J. Diefenbaker for a personal note and other mementos. O'Sullivan then begins to discuss Trudeau and his popularity, he remarks "If he calls an early election, he will sweep the Country. Truly he is a phenomenon, thanks to the press of Canada. However, the press are a fickle lot and could easily turn their marriage to him into a divorce under the new rules he had Parliament pass." He also discusses his opinion of how the provinces will vote in an upcoming election.

Letter - John Diefenbaker to Sean O'Sullivan, 5 July 1968

A letter from John Diefenbaker to Sean O'Sullivan following the election in 1968. Diefenbaker thanks O'Sullivan for his work for the Diefenbaker campaign in Prince Albert. He also mentions that O'Sullivan has "a knowledge of political issues that is amazing".

Sailing Journal, 1966-1968

Dorothy Rungeling's sailing journal which covers from 1966 to 1968 with outlines of the daily activities. The journal also includes Trip expenses and meal options.