Claire Leith
Justin Brooke
R. J. Law
Robert Roland Pennington
John Hambley Rowe
F. B. Michell
J. Higgans
James Hodge
D. H. Tew
Roger Burt
G. M. A. Trinick
John H. Trounson
Christopher J. Schmitz
Gerald Williams
E. W. A. Edmonds
Roy Shambrook
William A. Morris (Mining historian)
J. A. Buckley
Colin C. Short
Clive Carter
Allen Buckley
Peter Stanier (Geologist)
Williams' Perran Foundry Company