# Middlesex South (provincial electoral district)

Middlesex South was a provincial riding in Ontario, Canada, that was created for the 1934 election. It was abolished prior to the 1975 election. It was redistributed into the ridings of Middlesex, Huron—Middlesex and London South.

## Members of Provincial Parliament

Middlesex South :
| Assembly | Years | Member | Party |
| Renamed from Middlesex West |||||
| 19th | 1934–1937 | Charles Maitland MacFie | Liberal |
| 20th | 1937–1943 | Charles Maitland MacFie | Liberal |
| 21st | 1943–1945 | Daniel McIntyre | Progressive Conservative |
| 22nd | 1945–1948 | Harry Marshall Allen | Progressive Conservative |
| 23rd | 1948–1951 | Harry Marshall Allen | Progressive Conservative |
| 24th | 1951–1955 | Harry Marshall Allen | Progressive Conservative |
| 25th | 1955–1959 | Harry Marshall Allen | Progressive Conservative |
| 26th | 1959–1963 | Harry Marshall Allen | Progressive Conservative |
| 27th | 1963–1967 | Neil Leverne Olde | Progressive Conservative |
| 28th | 1967–1969 | Neil Leverne Olde | Progressive Conservative |
| 28th | 1969–1971 | Kenneth Bolton | New Democratic |
| 29th | 1971–1975 | Robert G. Eaton | Progressive Conservative |
| Sourced from the Ontario Legislative Assembly |||||
| Redistributed into Middlesex, Huron—Middlesex and London South before 1975 election |||||

## Election results

1951 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Harry Allen | 8,461 | 58.27 | +7.53 |
| | Liberal | Harry Brodie | 5,137 | 35.38 | -5.06 |
| | Co-operative Commonwealth | Anne Vowles | 922 | 6.35 | -2.47 |
| Total valid votes | Total valid votes | Total valid votes | 14,520 | 99.53 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 68 | 0.47 | -0.01 |
| Turnout | Turnout | Turnout | 14,588 | 65.08 | -2.98 |
| Eligible voters | Eligible voters | Eligible voters | 22,416 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | +6.29 |
| Source: Elections Ontario |||||||
1955 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Harry Allen | 9,434 | 56.72 | -1.55 |
| | Liberal | Harvey Wales | 7,199 | 43.28 | +7.90 |
| Total valid votes | Total valid votes | Total valid votes | 16,633 | 98.84 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 196 | 1.16 | +0.70 |
| Turnout | Turnout | Turnout | 16,829 | 67.64 | +2.56 |
| Eligible voters | Eligible voters | Eligible voters | 24,879 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | -4.73 |
| Source: Elections Ontario |||||||
1959 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Harry Allen | 9,317 | 55.98 | -0.97 |
| | Liberal | Ronald Macfie | 6,193 | 37.21 | -6.07 |
| | Co-operative Commonwealth | Everett Hall | 1,132 | 6.80 | |
| Total valid votes | Total valid votes | Total valid votes | 16,642 | 98.86 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 299 | 1.76 | +0.60 |
| Turnout | Turnout | Turnout | 16,941 | 59.45 | -8.20 |
| Eligible voters | Eligible voters | Eligible voters | 28,498 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | +2.67 |
| Source: Elections Ontario |||||||
1963 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Neil Olde | 12,532 | 60.72 | +4.74 |
| | Liberal | Ronald Macfie | 6,623 | 32.09 | -5.12 |
| | New Democratic | Patricia Chefurka | 1,483 | 7.19 | +0.38 |
| Total valid votes | Total valid votes | Total valid votes | 20,638 | 99.09 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 192 | 0.92 | -0.84 |
| Turnout | Turnout | Turnout | 20,830 | 62.57 | +3.12 |
| Eligible voters | Eligible voters | Eligible voters | 33,291 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | +4.93 |
| Source: Elections Ontario |||||||
1967 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Neil Olde | 8,423 | 44.47 | -16.26 |
| | Liberal | Leo Gent | 5,865 | 30.92 | -1.13 |
| | New Democratic | Kenneth Bolton | 4,654 | 24.57 | +17.38 |
| Total valid votes | Total valid votes | Total valid votes | 18,942 | 99.33 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 128 | 0.67 | -0.25 |
| Turnout | Turnout | Turnout | 19,070 | 63.19 | +0.62 |
| Eligible voters | Eligible voters | Eligible voters | 30,181 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | -7.56 |
| Source: Elections Ontario |||||||
Ontario provincial by-election, September 18, 1969 Death of Neil Leverne Olde :
| Candidate | Votes | % | ±% |
| New Democratic | Kenneth Bolton | 8,194 | 37.78 | +13.21 |
| Progressive Conservative | Walden Allen | 6,802 | 31.36 | -13.11 |
| Liberal | David McDonald | 6,694 | 30.86 | -0.10 |
| New Democratic gain from Progressive Conservative | New Democratic gain from Progressive Conservative | Swing | Swing | +13.16 |
1971 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Robert Eaton | 12,253 | 42.85 | +11.49 |
| | New Democratic | Kenneth Bolton | 9,200 | 32.18 | -5.60 |
| | Liberal | Ronald Crawford | 7,140 | 24.97 | -5.89 |
| Total valid votes | Total valid votes | Total valid votes | 28,593 | 99.58 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 123 | 0.43 |
| Turnout | Turnout | Turnout | 28,716 | 77.14 |
| Eligible voters | Eligible voters | Eligible voters | 37,227 |
| | Progressive Conservative gain from New Democratic | Progressive Conservative gain from New Democratic | Swing | Swing | +8.55 |
| Source: Elections Ontario |||||||