| Year | Orator | Title |
| 2022 | ||
| 2019 | Dr John Angus | 2019 Donald Oration Dr John Angus |
| 2017 |
Professor Timothy G Reeves FTSE |
2017 Donald Oration Professor Timothy G Reeves FTSE |
| 2015 | Prof. Graeme Blair | 2015 citation Donald Oration Prof. Graeme Blair |
| 2012 | Dr Brian Dear | |
| 2010 | Peter Cornish | 2010 Donald Oration Peter Cornish |
| 2008 | Prof. Robin Graham | |
| 2006 | Dr Bill Bowden | Decision Support for manageable and unmanageable limitations to crop production |
| 2003 | Prof. David Connor | |
| 2004 | Dr Tony Fischer | |
| 2001 | R.J. Esdaile | No-tillage Development at Livingston Farm, Moree and the NW Plains of NSW |
| 1998 | J.L. Davidson | Experiences of Pasture and Crop Production |
| 1996 | Dr A.B. Hearn | |
| 1993 | James Russell McWilliam | 1993 Donald Oration James Russell McWilliam |
| 1992 | Prof G L Wilson | 1992 Donald Oration Graeme Wilson |
| 1989 | Dr R.C. Rossiter | The Donald Oration and the Donald Medal |
| 1987 | Mr R J French | Reginald James French RDA, M.Agr.Sc., FAIAS |
| 1985 | ||
| 1982 | (retrospectively) Dr P G Ozane | |
| 1980 |
