# Electoral results for the Division of Isaacs (1949–1969)

This is a list of electoral results for the Division of Isaacs (1949–69) in Australian federal elections from the division's creation in 1949 until its abolition in 1969.

## Members

| Member | Member | Party | Term |
| | William Haworth | Liberal | 1949–1969 |

## Election results
### Elections in the 1960s
#### 1966

1966 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 18,468 | 54.0 | +4.4 |
| | Labor | Peter Wilkinson | 11,712 | 34.2 | -5.7 |
| | Democratic Labor | John Hughes | 4,032 | 11.8 | +1.3 |
| Total formal votes | Total formal votes | Total formal votes | 34,212 | 95.2 | |
| Informal votes | Informal votes | Informal votes | 1,742 | 4.8 | |
| Turnout | Turnout | Turnout | 35,954 | 92.0 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | | 64.6 | +5.5 |
| | Labor | Peter Wilkinson | | 35.4 | -5.5 |
| | Liberal hold | Liberal hold | Swing | +5.5 | |

#### 1963

1963 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 17,591 | 49.6 | +2.2 |
| | Labor | Paul Court | 14,159 | 39.9 | +1.0 |
| | Democratic Labor | John Hughes | 3,710 | 10.5 | -3.2 |
| Total formal votes | Total formal votes | Total formal votes | 35,460 | 98.1 | |
| Informal votes | Informal votes | Informal votes | 688 | 1.9 | |
| Turnout | Turnout | Turnout | 36,148 | 93.4 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | 20,953 | 59.1 | -0.5 |
| | Labor | Paul Court | 14,507 | 40.9 | +0.5 |
| | Liberal hold | Liberal hold | Swing | -0.5 | |

#### 1961

1961 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 16,493 | 47.4 | +2.0 |
| | Labor | Angus McLean | 13,527 | 38.9 | +3.4 |
| | Democratic Labor | John Hughes | 4,781 | 13.7 | +1.8 |
| Total formal votes | Total formal votes | Total formal votes | 34,801 | 97.0 | |
| Informal votes | Informal votes | Informal votes | 1,058 | 3.0 | |
| Turnout | Turnout | Turnout | 35,859 | 91.6 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | 20,724 | 59.6 | -1.8 |
| | Labor | Angus McLean | 14,077 | 40.4 | +1.8 |
| | Liberal hold | Liberal hold | Swing | -1.8 | |

### Elections in the 1950s
#### 1958

1958 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 16,534 | 45.4 | -9.1 |
| | Labor | Barry Jones | 12,933 | 35.5 | +2.2 |
| | Democratic Labor | John Hughes | 4,316 | 11.9 | -0.3 |
| | Independent | Elias Cowan | 2,624 | 7.2 | +7.2 |
| Total formal votes | Total formal votes | Total formal votes | 36,407 | 95.8 | |
| Informal votes | Informal votes | Informal votes | 1,581 | 4.2 | |
| Turnout | Turnout | Turnout | 37,988 | 93.4 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | | 61.4 | -2.9 |
| | Labor | Barry Jones | | 38.6 | +2.9 |
| | Liberal hold | Liberal hold | Swing | -2.9 | |

#### 1955

1955 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 20,670 | 54.5 | -1.2 |
| | Labor | Barry Jones | 12,644 | 33.3 | -11.0 |
| | Labor (A-C) | John Hughes | 4,610 | 12.2 | +12.2 |
| Total formal votes | Total formal votes | Total formal votes | 37,924 | 96.5 | |
| Informal votes | Informal votes | Informal votes | 1,361 | 3.5 | |
| Turnout | Turnout | Turnout | 39,285 | 92.2 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | | 64.3 | +8.6 |
| | Labor | Barry Jones | | 35.7 | -8.6 |
| | Liberal hold | Liberal hold | Swing | +8.6 | |

#### 1954

1954 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 19,315 | 55.9 | +4.4 |
| | Labor | Don MacSween | 15,240 | 44.1 | +1.5 |
| Total formal votes | Total formal votes | Total formal votes | 34,555 | 98.6 | |
| Informal votes | Informal votes | Informal votes | 504 | 1.4 | |
| Turnout | Turnout | Turnout | 35,059 | 95.1 | |
| | Liberal hold | Liberal hold | Swing | +3.8 | |

#### 1951

1951 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 19,548 | 51.5 | -2.5 |
| | Labor | John Bourke | 16,165 | 42.6 | -3.4 |
| | Independent Labor | Sam Goldbloom | 2,224 | 5.9 | +5.9 |
| Total formal votes | Total formal votes | Total formal votes | 37,937 | 97.9 | |
| Informal votes | Informal votes | Informal votes | 818 | 2.1 | |
| Turnout | Turnout | Turnout | 38,755 | 94.6 | |
| Two-party-preferred result ||||||
| | Liberal | William Haworth | | 52.1 | -1.9 |
| | Labor | John Bourke | | 47.9 | +1.9 |
| | Liberal hold | Liberal hold | Swing | -1.9 | |

### Elections in the 1940s
#### 1949

1949 Australian federal election: Isaacs :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | William Haworth | 21,260 | 54.0 | +1.7 |
| | Labor | John Bourke | 18,100 | 46.0 | -1.4 |
| Total formal votes | Total formal votes | Total formal votes | 39,360 | 98.1 | |
| Informal votes | Informal votes | Informal votes | 747 | 1.9 | |
| Turnout | Turnout | Turnout | 40,107 | 94.4 | |
| | Liberal notional hold | Liberal notional hold | Swing | +1.6 | |