English China Clays
British Thomson-Houston Company
Neckar Water Softener Company
Babcock & Wilcox
British Geological Survey
Arthur Cecil Todd
Kenneth Brown
Mike Brown
Cornish Mining Development Association
Richard Fells
John Malam
Geoffrey Blainey
Francis George Hawke
Plymouth City Council
Richard Hansford Worth
Stafford Clark
John Penderill-Church
Trevithick ..
James Hodge
Plymouth Friends of the Earth
Jonathan Falconer
Plymouth ..
T. A. Morrison
Cyril Thomas Goodman Boucher
Richard H. Bird
Derrick Beckett
John Joseph Beckerlegge
Denys Bradford Barton