Trevithick Society
William Woolcock
Robert Waterhouse
John Turner (Historian)
Rick J. Stewart
Peter Joseph
William Webb (19th Century Historian)
Claire Leith
Gerald Williams
Penny Watts-Russell
Simon Goldburn
Martin Bodman
Ronald Perry
Jim Lewis
Justin Brooke
R. J. Law
Alan Stoyel
Robert Roland Pennington
T. R. Harris
James Hodge
John Hambley Rowe
F. B. Michell
N. N. Pennington
J. Morton
J. Higgans
D. H. Tew
Roger Burt
Peter Lead
G. M. A. Trinick