# St. Catharines—Brock

St. Catharines—Brock was a provincial electoral division in Ontario, Canada containing the town of Niagara-on-the-Lake as well as the southern portion of the city of St. Catharines. It was created prior to the 1975 provincial election, and was abolished in 1999 when Ontario adjusted all of its provincial electoral divisions to match those at the federal level. With the riding being merged into the ridings of St. Catharines, Niagara Falls, and Niagara Centre.

## Members of Provincial Parliament

St. Catharines—Brock :
| Assembly | Years | Member | Party |
| Brock (1975-1987) |||||
| 30th | 1975–1977 | Bob Welch | Progressive Conservative |
| 31st | 1977–1981 | Bob Welch | Progressive Conservative |
| 32nd | 1981–1985 | Bob Welch | Progressive Conservative |
| 33rd | 1985–1987 | Peter Partington | Progressive Conservative |
| St. Catharines—Brock |||||
| 34th | 1987–1990 | Mike Dietsch | Liberal |
| 35th | 1990–1995 | Christel Haeck | New Democratic |
| 36th | 1995–1999 | Tom Froese | Progressive Conservative |
| Riding dissolved into St. Catharines, Niagara Falls, and Niagara Centre |||||

## Provincial election results

1975 Ontario general election :
| Party | Party | Candidate | Votes | % |
| | Progressive Conservative | Bob Welch | 10,978 | 48 |
| | Liberal | Margo Pyfe | 5,911 | 25.8 |
| | New Democratic | Fred Lindal | 5,836 | 25.5 |
| Total valid votes | Total valid votes | Total valid votes | 25,572 | 100.00 |
1977 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Bob Welch | 11,944 | 51.8 | +3.8 |
| | Liberal | Marv Edwards | 5,910 | 25.6 | -.2 |
| | New Democratic | Robert Hoover | 5,215 | 22.6 | -2.9 |
| Total valid votes | Total valid votes | Total valid votes | 23,069 | 100.00 |
1981 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | (x)Bob Welch | 10,547 | 48.8 | -3 |
| | Liberal | Bill Andres | 6,882 | 31.8 | +6.2 |
| | New Democratic | Heather Lee Kilty | 4,204 | 19.4 | -3.2 |
| Total valid votes | Total valid votes | Total valid votes | 21,633 | 100.00 |
1985 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Peter Partington | 9,741 | 41.6 | -7.2 |
| | Liberal | Bill Andres | 9,081 | 38.7 | +6.5 |
| | New Democratic | Robert Woolston | 5,624 | 16.5 | -2.9 |
| | Green | Brian Dolby | 755 | 3.2 | – |
| Total valid votes | Total valid votes | Total valid votes | 23,444 | 100.00 |
1987 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Mike Dietsch | 10,822 | 41.4 | +2.6 |
| | Progressive Conservative | (x)Peter Partington | 8,821 | 33.7 | -7.8 |
| | New Democratic | Christel Haeck | 6,514 | 14.9 | +8.9 |
| Total valid votes | Total valid votes | Total valid votes | 27,777 | 100.00 |
1990 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | New Democratic | Christel Haeck | 9,538 | 34.6 | +9.7 |
| | Liberal | (x)Mike Dietsch | 8,379 | 30.4 | -10.9 |
| | Progressive Conservative | Rob Welch | 6,969 | 25.3 | -8.4 |
| | Confederation of Regions | Rodney Book | 1,499 | 5.4 | — |
| | Family Coalition | Ed Klassen | 837 | 3.2 | |
| | Libertarian | Conrad Gibbons | 270 | 1.0 | |
| Total valid votes | Total valid votes | Total valid votes | 27,525 | 100.00 |
1995 Ontario general election :
| Party | Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Tom Froese | 11,976 | 47.0 | +21.7 |
| | Liberal | Gail Richardson | 7,373 | 29 | -1.5 |
| | New Democratic | (x)Christel Haeck | 5521 | 21.7 | -13 |
| | Family Coalition | Bert Pynenburg | 598 | 2.3 | -.8 |
| Total valid votes | Total valid votes | Total valid votes | 25,468 | 100.00 |