| 1987 | Peter Humphris |
| Elizabeth Humphris | |
| John Humphris * | |
| 1989 | Scott Hilleard |
| Andrew Van Nooten | |
| 1996 | Michael Green |
| Paul Chester | |
| 1997 | Scott Glover |
| 1998 | John Chester * |
| 1999 | Patrick McIvor * |
| 2002 | Stuart Taylor |
| 2003 | Shane Brown |
| 2006 | Andrew Parsons |
| 2008 | Shaun Payze |
| 2010 | David Hunter |
| 2011 | Stephen Baxter |
| Chris Bowman | |
| 2013 | Neil Franks |
| 2016 | John Forrest |
| 2017 | Wade Pelzer |