| David Arthur Russell Howell | 1974 | February 1974 |
| John Smith | 4 December 1975 | 8 April 1976 |
| Dr Jesse Dickson Mabon | 1976 | May 1979 |
| James Hamish Hector Northey Gray | May 1979 | 9 June 1983 |
| Rt Hon Hon Alick Laidlaw Buchanan-Smith | 1983 | 1987 |
| Peter Hugh Morrison | 1987 | |
| Stephen Cresswell Timms | May 2002 | 9 September 2004 |
| Michael O'Brien | 9 September 2004 | 9 May 2005 |