George Stephenson

George Stephenson was an English inventor. He lived in the village of Killingworth during the Industrial Revolution. (TV: The Mark of the Rani) He married three times. His third wife Ellen discovered a letter written to him from the Sixth Doctor after his death from pleurisy in August 1848. (PROSE: The Time Lord Letters)

As Amy Pond would recall, Stephenson's first steam locomotive went into service in 1814. (COMIC: The Doctor and the Nurse)