# Electoral results for the district of Middle Harbour

Middle Harbour, an electoral district of the Legislative Assembly in the Australian state of New South Wales had two incarnations, from 1904 to 1920 and from 1988 to 1991.
| Election | Member | Member | Party |
| 1904 | | Richard Arthur | Liberal Reform |
| 1907 | | Richard Arthur | Liberal Reform |
| 1910 | | Richard Arthur | Liberal Reform |
| 1913 | | Richard Arthur | Liberal Reform |
| 1917 | | Richard Arthur | Nationalist |
| Member | Member | Party | Term |
| 1988 | | Peter Collins | Liberal |

## Election results
### Elections in the 1980s
#### 1988

1988 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | Peter Collins | 20,147 | 71.2 | +5.2 |
| | Labor | Marilyn Dodkin | 8,161 | 28.8 | -1.1 |
| Total formal votes | Total formal votes | Total formal votes | 28,308 | 96.4 | −1.4 |
| Informal votes | Informal votes | Informal votes | 1,061 | 3.6 | +1.4 |
| Turnout | Turnout | Turnout | 29,369 | 93.4 | |
| | Liberal notional hold | Liberal notional hold | Swing | +3.2 | |
District recreated

#### 1920 - 1988

District abolished

### Elections in the 1910s
#### 1917

1917 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % | ±% |
| | Nationalist | Richard Arthur | 5,106 | 59.5 | -5.1 |
| | Independent | Alfred Reid | 1,904 | 22.2 | +22.2 |
| | Independent | Arthur Keirle | 1,568 | 18.3 | +18.3 |
| Total formal votes | Total formal votes | Total formal votes | 8,578 | 98.8 | +1.0 |
| Informal votes | Informal votes | Informal votes | 107 | 1.2 | −1.0 |
| Turnout | Turnout | Turnout | 8,685 | 53.9 | −13.2 |
| | Nationalist hold | Nationalist hold | Swing | -5.1 | |

#### 1913

1913 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % |
| | Liberal Reform | Richard Arthur | 5,785 | 64.6 |
| | Labor | Ellison Quirk | 3,068 | 34.3 |
| | Independent | James Bray | 76 | 0.9 |
| | Independent | Henry Johnson | 29 | 0.3 |
| Total formal votes | Total formal votes | Total formal votes | 8,958 | 97.8 |
| Informal votes | Informal votes | Informal votes | 205 | 2.2 |
| Turnout | Turnout | Turnout | 9,163 | 67.1 |
| | Liberal Reform hold | Liberal Reform hold | | |

#### 1910

1910 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % |
| | Liberal Reform | Richard Arthur | 7,554 | 68.7 |
| | Labour | Stephen O'Brien | 2,793 | 25.4 |
| | Independent Liberal | David Middleton | 647 | 5.9 |
| Total formal votes | Total formal votes | Total formal votes | 10,994 | 98.7 |
| Informal votes | Informal votes | Informal votes | 150 | 1.3 |
| Turnout | Turnout | Turnout | 11,144 | 68.2 |
| | Liberal Reform hold | Liberal Reform hold | | |

### Elections in the 1900s
#### 1907

1907 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % |
| | Liberal Reform | Richard Arthur | 5,120 | 57.2 |
| | Independent Liberal | William Fell | 3,674 | 41.0 |
| | Independent | Thomas Loxton | 92 | 1.0 |
| | Independent | John Hayes | 70 | 0.8 |
| Total formal votes | Total formal votes | Total formal votes | 8,956 | 98.0 |
| Informal votes | Informal votes | Informal votes | 183 | 2.0 |
| Turnout | Turnout | Turnout | 9,139 | 75.9 |
| | Liberal Reform hold | Liberal Reform hold | | |

#### 1904

1904 New South Wales state election: Middle Harbour :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal Reform | Richard Arthur | 3,137 | 58.2 | |
| | Ind. Progressive | Ellison Quirk | 2,207 | 41.0 | |
| | Socialist Labor | William Gocher | 33 | 0.6 | |
| | Independent | Edgar Vanhee | 13 | 0.2 | |
| Total formal votes | Total formal votes | Total formal votes | 5,390 | 99.3 | |
| Informal votes | Informal votes | Informal votes | 37 | 0.7 | |
| Turnout | Turnout | Turnout | 5,427 | 60.5 | |
| | Liberal Reform win | Liberal Reform win | (new seat) | (new seat) | (new seat) |