| 1966/67-1970 | Duke Pilling | |
| 1970-1980 | Sam Hart |  |
| 1980-1982 | Rod Bennett | |
| 1982-1984 | Tom Olliver |  |
| 1984-1986 | Peter Hills |  |
| 1986 | Sue Bennett (acting) |  |
| 1986-1988 | June Bush | |
| 1988-1990 | Sue McGrath |  |
| 1990-1991 | Peter Brotherwood | |
| 1991-1992 | Elaine Elderton |  |
| 1992- | Lindsay Hills |