1955 Ontario general election

The 1955 Ontario general election was held on June 9, 1955, to elect the 98 members of the 25th Legislative Assembly of Ontario (Members of Provincial Parliament, or "MPPs") of the Province of Ontario.

The Ontario Progressive Conservative Party, led by Leslie Frost, won a fifth consecutive term in office, increasing its caucus in the legislature from 79 in the previous election to 83.

The Ontario Liberal Party, again led by Farquhar Oliver, won three additional seats in the enlarged legislature, increasing its caucus from 8 to 11, and continuing in the role of official opposition. Liberal-Labour MPP Albert Wren was re-elected and continued to sit with the Liberal caucus.

The social democratic Co-operative Commonwealth Federation (CCF), led by Donald C. MacDonald, won one additional seat, for a total of three.

The Labor-Progressive Party (which was the Communist Party) lost its last remaining seat with the defeat of J.B. Salsberg.

James Shannon Dempsey (Renfrew South) had his endorsement as a PC candidate withdrawn because of controversy over a political gift, but he was reelected as an Independent PC.

Pre-election developments Franchise reform The Election Act, 1951 was significantly amended in 1954, providing for the following changes to the right to vote in Ontario:

removal of the disqualification from voting for having been paid to act on behalf of a candidate1954 Act, s. 2 removal of the disqualification from voting for being an inmate maintained in a home for the aged or a house of industry1954 Act, s. 3 extension of the franchise to all Indians living in the province, whether enfranchised or not under the Indian Act1954 Act, ss. 4, 5 removal from the voters' list for temporary absence because of being a student, a mariner, or a member of the Canadian, Commonwealth or allied forces1954 Act, s. 5

Expansion of Legislative Assembly For the first time since the 1934 election, the number of seats in the Legislature was adjusted, rising from 90 to 98. The following changes were made:

Addington became Frontenac—Addington London was divided into London North and London South Muskoka—Ontario was reduced to Muskoka, ceding its part of Ontario County to Ontario Nickel Belt was separated from Sudbury Oshawa was separated from Ontario Ottawa West was carved out from Carleton Wellington North became Wellington—Dufferin Part of Wentworth became Wentworth East York Centre was carved out from York North York—Humber was separated from York West York—Scarborough was ceded from York East

Campaign + Riding contests, by number of candidates (1955) CandidatesPCLibLLCCFI-PCLab-PrIndI-LibSCS-LabTotal217 16 1 34346 44 2 46 1 1 1 141431 31 31 27 4 12453 3 3 3 1 1 1 15Total97 94 2 81 1 31 5 1 1 1 314

Results

|style="text-align:left;"|Leslie Frost |97 |79 | |83 |4 |846,592 |48.06% |0.40

|style="text-align:left;"|Farquhar Oliver |94 |7 | |10 |3 |577,774 |32.80% |1.74

|style="text-align:left;"|Donald C. MacDonald |81 |2 | |3 |1 |291,410 |16.54% |2.56

|style="text-align:left;"|Stewart Smith |31 |1 | |– |1 |20,875 |1.19% |0.52

|style="text-align:left;"| |2 |1 | |1 | |7,305 |0.41% |0.04

|style="text-align:left;"| |1 |– |– |1 |1 |7,033 |0.40% |0.34

|style="text-align:left;"| |5 |– |– |– | |9,169 |0.52% |0.41

|style="text-align:left;"| |1 |– |– |– | |641 |0.04% |

|style="text-align:left;"| |1 |– |– |– | |602 |0.03% |

|style="text-align:left;"| |1 |– |– |– | |124 |0.01% |

|style="text-align:left;"| |– |– |– |– | |colspan="3"|Did not campaign

|colspan="3"| | |colspan="5"| |-style="background:#E9E9E9;" |colspan="3" style="text-align:left;"|Total |314 |90 |90 |98 | |1,761,525 |100.00%

Vote and seat summaries

+ Seats and popular vote by party Party Seats Votes Change (pp)

Synopsis of results

1955 Ontario general election

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