1926-1978

?

1979

John D. Leak

1980

?

1981

?

1982

?

1983

Paul A. Wakefield

1984

John L. Kennett

1985

Andrew J. Cubitt

1986

Mark L. Dahlenburg

1987

Timothy J. Hall

1988

David G. Serotzki

1989

Robert J. Parkinson

1990

David S. Cook

1991

Ian P. Willsmore

1992

Paul J. Morris

1993

?

1994

?

1995

John A. Easling

1996

?

1997

?

1998

J. Lachlan Ferguson

1999

Matthew L. Johnson

2000

Henry I. L. Mould

2001

J. Lachlan Ferguson

2002

Gregory J. Hutton & Justin M. Trim

2003

Michael W. Sanders

2004

Alexander J. E. Taylor & Thomas M. Martin

2005

Anthony J. Antonas

2006

Justin M. Trim

2007

Ryan J. Ramsey

2008

Nicholas H. Martin

2009

Michael C. C. Siciliano

2010

James A. Dalwood

2011

Nicholas R. Joy

2012

Nicholas H. Martin

2013

James H. Parkinson

2014

James H. Parkinson & Geoffrey R. Prest

2015

James H. Parkinson & Timothy J. Hall

2016

James H. Parkinson

2017

James H. Parkinson

2018

M. Cameron Johnston & James H. Parkinson

2019

Duncan J. Clarke

2020

Thomas E. F. Brinsley

2021

Adam R. Perryman

2022

Penelope A. Piper