# Frost ministry

The Frost Ministry was the combined cabinet (formally the Executive Council of Ontario) that governed Ontario from May 4, 1949, to November 8, 1961. It was led by the 16th Premier of Ontario, Leslie Frost. The ministry was made up of members of the Progressive Conservative Party of Ontario, which commanded a majority of the seats in the Legislative Assembly of Ontario throughout its duration.
The ministry replaced the Kennedy ministry following the 1949 Progressive Conservative Party of Ontario leadership election. The Robarts ministry governed through the second part of the 23rd Parliament of Ontario, the entirety of the 24th and 25th Parliaments of Ontario, and the first part of the 26th Parliament of Ontario.
Frost resigned in 1971 and was succeeded as Premier of Ontario by John Robarts.

## List of ministers

Frost ministry by portfolio :
| Portfolio | Minister | Tenure | Tenure |
| Portfolio | Minister | Start | End |
| Premier of Ontario | Leslie Frost | May 4, 1949 | November 8, 1961 |
| Minister of Agriculture | Thomas Laird Kennedy | May 4, 1949 | January 20, 1953 |
| Minister of Agriculture | Fletcher Stewart Thomas | January 20, 1953 | August 1, 1956 |
| Minister of Agriculture | Bill Goodfellow | August 1, 1956 | November 8, 1961 |
| Attorney General | Dana Porter | May 4, 1949 | August 17, 1955 |
| Attorney General | Kelso Roberts | August 17, 1955 | November 8, 1961 |
| Minister Travel and Publicity | Louis-Pierre Cécile | May 4, 1949 | August 17, 1955 |
| Minister Travel and Publicity | Bryan Lewis Cathcart | August 17, 1955 | November 8, 1961 |
| Minister of Public Welfare | Bill Goodfellow | May 4, 1949 | August 17, 1955 |
| Minister of Public Welfare | Louis-Pierre Cécile | August 17, 1955 | November 8, 1961 |
| Minister of Reform Institutions | George Harrison Dunbar | May 4, 1949 | July 15, 1949 |
| Minister of Reform Institutions | William Ernest Hamilton | July 15, 1949 | November 16, 1950 |
| Minister of Reform Institutions | John Weir Foote | November 16, 1950 | July 18, 1957 |
| Minister of Reform Institutions | Matthew Dymond | July 18, 1957 | April 28, 1958 |
| Minister of Reform Institutions | Ray Connell | April 28, 1958 | December 22, 1958 |
| Minister of Reform Institutions | George Wardrope | December 22, 1958 | November 8, 1961 |
| Minister of Education | Dana Porter | May 4, 1949 | October 2, 1951 |
| Minister of Education | William James Dunlop | October 2, 1951 | December 17, 1959 |
| Minister of Education | John Robarts | December 17, 1959 | November 8, 1961 |
| Minister of Energy Resources | Robert Macaulay | May 5, 1959 | November 8, 1961 |
| Treasurer | Leslie Frost | May 4, 1949 | August 17, 1955 |
| Treasurer | Dana Porter | August 17, 1955 | January 30, 1958 |
| Treasurer | Leslie Frost | February 3, 1958 | April 28, 1958 |
| Treasurer | James Allan | April 28, 1958 | November 8, 1961 |
| Ministry of Highways | George Doucett | May 4, 1949 | January 5, 1955 |
| Ministry of Highways | James Allan | January 5, 1955 | April 28, 1958 |
| Ministry of Highways | Fred Cass | April 28, 1958 | November 8, 1961 |
| Minister of Public Works | George Doucett | May 4, 1949 | October 2, 1951 |
| Minister of Public Works | Fletcher Stewart Thomas | October 2, 1951 | January 20, 1953 |
| Minister of Public Works | William Griesinger | January 20, 1953 | May 6, 1958 |
| Minister of Public Works | James Allan | May 6, 1958 | December 22, 1958 |
| Minister of Public Works | Ray Connell | December 22, 1958 | November 8, 1961 |
| Minister of Health | Russell Temple Kelley | May 4, 1949 | August 8, 1950 |
| Minister of Health | Mac Phillips | August 8, 1950 | December 22, 1958 |
| Minister of Health | Matthew Dymond | December 22, 1958 | November 8, 1961 |
| Minister of Planning and Development | William Griesinger | May 4, 1949 | January 20, 1953 |
| Minister of Planning and Development | Bill Warrender | January 20, 1953 | August 17, 1955 |
| Minister of Planning and Development | William Nickle | August 17, 1955 | November 8, 1961 |
| Minister of Labour | Charles Daley | May 4, 1949 | November 8, 1961 |
| Minister of Municipal Affairs | George Dunbar | May 4, 1949 | August 17, 1955 |
| Minister of Municipal Affairs | Bill Goodfellow | August 17, 1955 | November 1, 1956 |
| Minister of Municipal Affairs | Bill Warrender | November 1, 1956 | November 8, 1961 |
| Minister of Lands and Forests | Harold Robinson Scott | May 4, 1949 | June 3, 1952 |
| Minister of Lands and Forests | Welland Gemmell | June 3, 1952 | June 18, 1954 |
| Minister of Lands and Forests | Clare Mapledoram | June 18, 1954 | July 4, 1958 |
| Minister of Lands and Forests | Wilf Spooner | July 4, 1958 | November 8, 1961 |
| Minister of Mines | Welland Gemmell | May 4, 1949 | June 3, 1952 |
| Minister of Mines | Philip Kelly | June 3, 1952 | July 18, 1957 |
| Minister of Mines | Wilf Spooner | July 18, 1957 | December 22, 1958 |
| Minister of Mines | James Anthony Maloney | December 22, 1958 | October 1, 1961 |
| Minister of Transport | James Allan | June 26, 1957 | April 28, 1958 |
| Minister of Transport | Matthew Dymond | April 28, 1958 | December 22, 1958 |
| Minister of Transport | John Yaremko | December 22, 1958 | November 21, 1960 |
| Minister of Transport | Leslie Rowntree | November 21, 1960 | November 8, 1961 |
| Ministers Without Portfolios | Bill Warrender | August 17, 1955 | November 1, 1956 |
| Provincial Secretary and Registrar | George Arthur Welsh | May 4, 1949 | January 20, 1955 |
| Provincial Secretary and Registrar | William Nickle | January 20, 1955 | August 17, 1955 |
| Provincial Secretary and Registrar | George Harrison Dunbar | August 17, 1955 | December 22, 1958 |
| Provincial Secretary and Registrar | Mac Phillips | December 22, 1958 | May 26, 1960 |
| Provincial Secretary and Registrar | John Yaremko | May 26, 1960 | November 8, 1961 |