Dennis Timbrell

He became a minister without portfolio responsible for youth in the Davis government on February 26, 1974,[8] and was named as minister of energy on July 18, 1975.[9] On February 3, 1977, he was promoted to minister of health.[10] After serving in this high-profile position for five years, he became minister of agriculture and food on February 13, 1982.[11]

Following Davis's resignation as PC leader and as premier, Timbrell sought the party leadership at the January 1985 leadership convention. He positioned himself as a centre-right candidate, further to the right of Red Tory rivals Larry Grossman and Roy McMurtry, but not as far to the right as Frank Miller, and therefore the candidate best able to continue Davis' pragmatic, successful style of government. (In fact, many media pundits at the time referred to Timbrell as a "clone" of Davis; playing to this, some of Timbrell's supporters at the January 1985 convention wore buttons that depicted a caricature which morphed the facial features of both Davis and Timbrell into one person). Timbrell was the only candidate to favour eliminating rent controls during the campaign. His supporters included Keith Norton, Leo Bernier, Margaret Birch, Robert Eaton, Gordon Dean, Bob Welch and Norm Sterling.

Timbrell placed second on the first ballot, but was eliminated when he fell to third place on the second ballot, six votes behind Grossman who had the backing of McMurtry's campaign. Dr. John Balkwill in 1987 claimed that 30 to 40 Miller supporters were instructed by the Miller campaign to vote for Grossman on the second ballot to prevent him from advancing. Lou Parsons, a senior Miller adviser, later acknowledged, "We wouldn't have won it against Dennis [...] Our winning strategy was always to be against Larry ... and in the end we were lucky."[12]

Timbrell reluctantly endorsed Grossman after the results were confirmed by a recount. He however did not bring enough delegates on the third ballot and that resulted in Miller's victory. He was retained in Miller's Cabinet as minister of municipal affairs and housing with responsibility for women's issues.[13]

The Progressive Conservative Party under Miller's leadership was reduced to a narrow minority government in the 1985 election. Following a cabinet shuffle on May 17, 1985, Timbrell retained his previous postings and was additionally appointed provincial secretary for resource development.[14] Miller's government was defeated in the House in June, 1985. In opposition, Timbrell served as House leader of the Official Opposition and his party's critic for education and women's issues.

Miller resigned as leader, and the party called another leadership convention for November 1985. This contest was an extremely divisive struggle between Timbrell and Grossman, which exposed deep divisions in the party. A third candidate, Alan Pope, drew attention to the animosity between the candidates with his slogan, "Don't choose sides, choose Pope". Alan Eagleson was a co-chairman of Timbrell's campaign.

In this leadership race, Timbrell announced he would not support the full funding of Catholic schools (which had previously been agreed to by all parties in the legislature) unless amendments were put forward guaranteeing entry to non-Catholic teachers and students. Norm Sterling, an inveterate opponent of Catholic school funding, derided Timbrell's position as opportunistic and crossed over to Grossman.

Pope finished third on the opening ballot and some believed that he could have given Timbrell a second-ballot victory over Grossman, though Pope chose not to endorse either side. Grossman defeated Timbrell on the second ballot by nineteen votes, effectively ending Timbrell's career in provincial politics. He did not seek re-election in 1987, as his two unsuccessful leadership bids had left him with a debt of $250,000.[15]

Despite no longer being an MPP, Timbrell was seen by many as the front runner to succeed Grossman in the 1990 Ontario PC Leadership Race, but he chose not to run, instead supporting the candidacy of Dianne Cunningham, who would eventually lose to Mike Harris.