character: George Stephenson
topic: Contributions to Early Steam Locomotion
grade: 8
subject: History
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character: Robert Stephenson
topic: Innovations in Railway Engineering
grade: 8
subject: History
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character: Richard Trevithick
topic: Development of the First High-Pressure Steam Engine
grade: 8
subject: History
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character: John Bull
topic: Significance in American Railroads
grade: 8
subject: History
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