# 25th Parliament of Ontario

The 25th Legislative Assembly of Ontario was in session from June 9, 1955, until May 4, 1959, just prior to the 1959 general election. The majority party was the Ontario Progressive Conservative Party led by Leslie Frost.
Alfred Wallace Downer served as speaker for the assembly.

## Members elected to the Assembly

| Riding | Member | Party | First elected / previously elected |
| Algoma—Manitoulin | John Arthur Fullerton | Progressive Conservative | 1943 |
| Beaches | William Henry Collings | Progressive Conservative | 1951 |
| Bellwoods | John Yaremko | Progressive Conservative | 1951 |
| Bracondale | Arthur George Frost | Progressive Conservative | 1951 |
| Brant County | Harry Corwin Nixon | Liberal | 1919 |
| Brantford | George Thomas Gordon | Liberal | 1948 |
| Bruce | Ross MacKenzie Whicher | Liberal | 1955 |
| Carleton | William Erskine Johnston | Progressive Conservative | 1955 |
| Cochrane North | Philip Kelly | Progressive Conservative | 1951 |
| Cochrane North | René Brunelle (1958) | Progressive Conservative | 1958 |
| Cochrane South | Wilf Spooner | Progressive Conservative | 1955 |
| Dovercourt | David Kerr | Progressive Conservative | 1951 |
| Dufferin—Simcoe | Alfred Wallace Downer | Progressive Conservative | 1937 |
| Durham | John Weir Foote | Progressive Conservative | 1948 |
| Eglinton | William James Dunlop | Progressive Conservative | 1951 |
| Elgin | Fletcher Stewart Thomas | Progressive Conservative | 1945 |
| Elgin | Ronald Keith McNeil (1958) | Progressive Conservative | 1958 |
| Essex North | Arthur John Reaume | Liberal | 1951 |
| Essex South | William Murdoch | Progressive Conservative | 1943 |
| Fort William | Clare Edgar Mapledoram | Progressive Conservative | 1951 |
| Frontenac—Addington | David John Rankin | Progressive Conservative | 1955 |
| Glengarry | Osie Villeneuve | Progressive Conservative | 1948 |
| Glengarry | Fernand Guindon (1957) | Progressive Conservative | 1957 |
| Grenville—Dundas | Frederick McIntosh Cass | Progressive Conservative | 1955 |
| Grey North | Mackinnon Phillips | Progressive Conservative | 1945 |
| Grey South | Farquhar Robert Oliver | Liberal | 1926 |
| Haldimand—Norfolk | James Noble Allan | Progressive Conservative | 1951 |
| Halton | Stanley Leroy Hall | Progressive Conservative | 1943 |
| Hamilton Centre | William Kenneth Warrender | Progressive Conservative | 1951 |
| Hamilton East | Robert Ellsworth Elliott | Progressive Conservative | 1945, 1951 |
| Hamilton—Wentworth | Thomas Ray Connell | Progressive Conservative | 1951 |
| Hastings East | Roscoe Robson | Progressive Conservative | 1943 |
| Hastings East | Lloyd Harrison Price (1958) | Progressive Conservative | 1958 |
| Hastings West | Elmer Sandercock | Progressive Conservative | 1948 |
| High Park | Alfred Hozack Cowling | Progressive Conservative | 1951 |
| Huron | Thomas Pryde | Progressive Conservative | 1948 |
| Huron | Charles Steel MacNaughton (1958) | Progressive Conservative | 1958 |
| Huron—Bruce | John William Hanna | Progressive Conservative | 1943 |
| Kenora | Albert Wren | Liberal-Labour | 1951 |
| Kent East | John Purvis Spence | Liberal | 1955 |
| Kent West | George William Parry | Progressive Conservative | 1945 |
| Kingston | William McAdam Nickle | Progressive Conservative | 1951 |
| Lambton East | Charles Eusibius Janes | Progressive Conservative | 1945 |
| Lambton West | Bryan Lewis Cathcart | Progressive Conservative | 1945 |
| Lanark | George Henry Doucett | Progressive Conservative | 1937 |
| Lanark | John Arthur McCue (1957) | Progressive Conservative | 1957 |
| Lanark | George Ellis Gomme (1958) | Progressive Conservative | 1958 |
| Leeds | James Auld | Progressive Conservative | 1954 |
| Lincoln | Charles Daley | Progressive Conservative | 1943 |
| London North | John Parmenter Robarts | Progressive Conservative | 1951 |
| London South | George Ernest Jackson | Progressive Conservative | 1955 |
| Middlesex North | Thomas L. Patrick | Progressive Conservative | 1943 |
| Middlesex North | William Atcheson Stewart (1957) | Progressive Conservative | 1957 |
| Middlesex South | Harry Marshall Allen | Progressive Conservative | 1945 |
| Muskoka | Robert James Boyer | Progressive Conservative | 1955 |
| Niagara Falls | Arthur Connaught Jolley | Progressive Conservative | 1954 |
| Nickel Belt | Rhéal Bélisle | Progressive Conservative | 1955 |
| Nipissing | Jean Marc Chaput | Progressive Conservative | 1954 |
| Northumberland | William Arthur Goodfellow | Progressive Conservative | 1943 |
| Ontario | Matthew Bulloch Dymond | Progressive Conservative | 1955 |
| Oshawa | T.D. Thomas | Co-operative Commonwealth | 1948 |
| Ottawa East | Jules Morin | Progressive Conservative | 1955 |
| Ottawa South | George Harrison Dunbar | Progressive Conservative | 1937 |
| Ottawa West | Donald Hugo Morrow | Progressive Conservative | 1948 |
| Oxford | Gordon William Innes | Liberal | 1955 |
| Parkdale | William James Stewart | Progressive Conservative | 1938, 1951 |
| Parry Sound | Allister Johnston | Progressive Conservative | 1948 |
| Peel | Thomas Laird Kennedy | Progressive Conservative | 1919, 1937 |
| Perth | James Frederick Edwards | Progressive Conservative | 1945 |
| Peterborough | Harold Robinson Scott | Progressive Conservative | 1943 |
| Port Arthur | George Calvin Wardrope | Progressive Conservative | 1951 |
| Prescott | Louis-Pierre Cécile | Progressive Conservative | 1948 |
| Prince Edward—Lennox | Norris Eldon Howe Whitney | Progressive Conservative | 1951 |
| Rainy River | William George Noden | Progressive Conservative | 1951 |
| Renfrew North | Stanley Joseph Hunt | Progressive Conservative | 1943 |
| Renfrew North | Maurice Hamilton (1958) | Progressive Conservative | 1958 |
| Renfrew South | James Shannon Dempsey | Independent PC | 1945 |
| Renfrew South | James Anthony Maloney (1956) | Progressive Conservative | 1956 |
| Riverdale | Robert William Macaulay | Progressive Conservative | 1951 |
| Russell | Gordon Lavergne | Progressive Conservative | 1954 |
| Sault Ste. Marie | Harry Lyons | Progressive Conservative | 1951 |
| Simcoe Centre | George Graham Johnston | Progressive Conservative | 1943 |
| Simcoe East | Lloyd Averall Letherby | Progressive Conservative | 1954 |
| St. Andrew | Allan Grossman | Progressive Conservative | 1955 |
| St. David | Henry James Price | Progressive Conservative | 1955 |
| St. George | Dana Harris Porter | Progressive Conservative | 1943 |
| St. George | Allan Frederick Lawrence (1958) | Progressive Conservative | 1958 |
| St. Patrick | Archibald Kelso Roberts | Progressive Conservative | 1943, 1951 |
| Stormont | Peter Thomas Manley | Liberal | 1951 |
| Sudbury | Gerald Joseph Monaghan | Progressive Conservative | 1955 |
| Timiskaming | Alexander Robert Herbert | Progressive Conservative | 1951 |
| Victoria | Leslie Miscampbell Frost | Progressive Conservative | 1937 |
| Waterloo North | John Joseph Wintermeyer | Liberal | 1955 |
| Waterloo South | Raymond Munro Myers | Progressive Conservative | 1951 |
| Welland | Ellis Price Morningstar | Progressive Conservative | 1951 |
| Wellington South | Harry A. Worton | Liberal | 1955 |
| Wellington—Dufferin | John Henry Haines Root | Progressive Conservative | 1951 |
| Wentworth | Arthur John Child | Progressive Conservative | 1951 |
| Wentworth East | Reg Gisborn | Co-operative Commonwealth | 1955 |
| Windsor—Sandwich | William Griesinger | Progressive Conservative | 1945 |
| Windsor—Walkerville | M.C. Davies | Progressive Conservative | 1945 |
| Woodbine | Harold Ferguson Fishleigh | Progressive Conservative | 1951 |
| York Centre | Thomas Graham | Progressive Conservative | 1955 |
| York East | Hollis Edward Beckett | Progressive Conservative | 1951 |
| York North | Addison Alexander MacKenzie | Progressive Conservative | 1945 |
| York South | Donald Cameron MacDonald | Co-operative Commonwealth | 1955 |
| York West | W. Elmer Brandon | Progressive Conservative | 1951 |
| York West | Leslie Rowntree (1956) | Progressive Conservative | 1956 |
| York—Humber | William Beverley Lewis | Progressive Conservative | 1955 |
| York—Scarborough | Richard Edward Sutton | Progressive Conservative | 1955 |

## Timeline

25th Legislative Assembly of Ontario - Movement in seats held (1955-1959) :
| Party | Party | 1955 | Gain/(loss) due to | Gain/(loss) due to | Gain/(loss) due to | Gain/(loss) due to | 1959 |
| Party | Party | 1955 | Resignation as MPP | Death in office | Byelection gain | Byelection hold | 1959 |
| | Progressive Conservative | 83 | (6) | (5) | 1 | 11 | 84 |
| | Liberal | 10 | | | | | 10 |
| | Co-operative Commonwealth | 3 | | | | | 3 |
| | Liberal–Labour | 1 | | | | | 1 |
| | Independent PC | 1 | | (1) | | | – |
| Total | Total | 98 | (6) | (6) | 1 | 11 | 98 |
Changes in seats held (1955-1959) :
| Seat | Before | Before | Before | Before | Change | Change | Change |
| Seat | Date | Member | Party | Reason | Date | Member | Party |
| Renfrew South | October 24, 1955 | James Shannon Dempsey | █ Independent PC | Died in office | January 12, 1956 | James Maloney | █ PC |
| York West | July 2, 1956 | Elmer Brandon | █ PC | Died in office | October 18, 1956 | Leslie Rowntree | █ PC |
| Middlesex North | January 10, 1957 | Thomas Patrick | █ PC | Died in office | September 5, 1957 | William Atcheson Stewart | █ PC |
| Glengarry | May 25, 1957 | Osie Villeneuve | █ PC | Resigned to contest the House of Commons seat of Glengarry—Prescott in the 1957 election | September 5, 1957 | Fernand Guindon | █ PC |
| Lanark | August 14, 1957 | George Henry Doucett | █ PC | Resigned to contest the House of Commons seat of Lanark in a byelection, upon the death of William Gourlay Blair | October 24, 1957 | John Arthur McCue | █ PC |
| Lanark | May 26, 1958 | John Arthur McCue | █ PC | Died in office | August 28, 1958 | George Gomme | █ PC |
| Elgin | November 9, 1957 | Fletcher Stewart Thomas | █ PC | Died in office | January 30, 1958 | Ron McNeil | █ PC |
| Huron | January 5, 1958 | Thomas Pryde | █ PC | Died in office | May 12, 1958 | Charles MacNaughton | █ PC |
| Cochrane North | January 22, 1958 | Philip Kelly | █ PC | Resigned from seat, after previously being ordered to resign as Minister of Mines | May 12, 1958 | René Brunelle | █ PC |
| St. George | January 30, 1958 | Dana Porter | █ PC | Appointed as Chief Justice of the Ontario Court of Appeal | May 12, 1958 | Allan Lawrence | █ PC |
| Renfrew North | March 1, 1958 | Stanley Joseph Hunt | █ PC | Resigned to contest the House of Commons seat of Renfrew North in the 1958 election | May 12, 1958 | Maurice Hamilton | █ PC |
| Hastings East | July 30, 1958 | Roscoe Robson | █ PC | Accepted an appointment as Sheriff of Hastings County | August 28, 1958 | Lloyd Price | █ PC |