http://en.wikipedia.org/wiki/Richard_Trevithick
http://www.spartacus.schoolnet.co.uk/RAtrevithick.htm
_ 37417 Richard Trevithick And 37401 Double Header On Steel
http://www.youtube.com/watch?v=aKq_NT_pj0c
_ Blue Plaque to honour Richard Trevithick 1771-1833
http://www.youtube.com/watch?v=8Z5_YTYw6do
