Spartacus: George Stephenson: Biography of the railroad pioneer whose work on railways included a nine-arched viaduct across the Sankey Valley.
Structurae: George Stephenson: Biography with list of works and related literature and web sites.
The Life of George Stephenson: Full text of Samuel Smiles book published in 1859.
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.