1964: E.A. Polly*
1990: B.B. Sherington*
1995: F.A. Davies* and D.D. Meares
2004: S.D. Oxenham
2009: M.J. Walsh
2010: J.E. Carter*
2011: J.N. Creer (Snr)* and I.A. Curlewis*
2013: D.R. Doyle
2014: P.W. Spence
2016: J.D. Grice and A.C. Michael
2017: A.S. Chapman and J.C. Rasmus
2020: J.A. Black, G.R. Lang and K.A. MacDonald
* Denotes Deceased Members