The Life of George Stephenson and of his Son Robert Stephenson - Facsimile of Smiles 1869 book which also includes a history of the invention and introduction of the railway locomotive. - http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AJS2483
The Life of George Stephenson - Full text of Samuel Smiles book published in 1859. - http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AGW9732
Spartacus: George Stephenson - Biography of the railroad pioneer whose work on railways included a nine-arched viaduct across the Sankey Valley. - http://www.spartacus.schoolnet.co.uk/RAstephensonG.htm
Structurae: George Stephenson - Biography with list of works and related literature and web sites. - http://www.structurae.de/en/people/data/des2265.php