Timothy Hackworth (1786–1850), steam locomotive mechanical engineer
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David Hackworth (1930–2005), United States Army colonel and prominent military journalist
Shortly after Hackworth, George Stephenson also employed the same method, and again it is not clear whether that was an independent discovery or a copy of one of the other engineers.
Hackworth, Stockton-on-Tees and in 1853 moved again, this time to the works of Messrs. Thomas Richardson and Son, Hartlepool.