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Charles Walter Hart (1872–1937) was born in Charles City, Floyd County, Iowa in 1872. His company, Hart-Parr Gasoline Engine Company, known as the "founders of the tractor industry", coined the word tractor.〔Andrew Morland. Farm Tractors. MBI Publishing Company, 1993. p. 75.〕 First enrolling at the Iowa State College of Agriculture and Mechanical Arts at the age of 20, he transferred to the University of Wisconsin (now University of Wisconsin–Madison).〔C.H. Wendel. ''Oliver/Hart-Parr''. Osceola, WI: Motorbooks International, 1994, p. 54.〕 It was here that he met Charles H. Parr, and the two young men quickly became friends. Together they worked on their university thesis, which consisted of building three working internal combustion engines.〔Robert N. Pripps and Andrew Moreland. ''Oliver Tractors''. Osceola, WI: Motorbooks, p. 24.〕 One of these engines is still on display at the school today. Despite owning three farms near Charles City, Iowa, Hart's father considered his son's experiments "folly".〔Pripps, Robert, ''Oliver Tractors''. Osceola, WI: Motorbooks, pp. 23-24.〕 In April 1897, J.H. Bowman joined Hart and Parr on a three-member board of directors after his $3,000 investment in Hart-Parr.〔Gay, Larry. "A Look Back in Time", ''Hart Parr Oliver Collector'', Mar/Apr 2007, p. 12.〕 In October 1897, ''Wisconsin Engineer'' featured Hart and Parr as they discussed their final draft of the thesis on the internal combustion engine.〔Gay, Larry. "A Look Back in Time", ''Hart Parr Oliver Collector'', Sept/Oct 2007, p. 8.〕 In 1898, Hart married Jessie Case on February 14. In 1916, Hart wrote an article in ''Farm Implement News'', advocating for the 60-horsepower, 8-bottom plow tractor, versus the smaller 2-plow tractors.〔Gay, Larry. "A Look Back in Time", ''Hart Parr Oliver Collector'', Mar/Apr 2006, p. 14.〕 By 1917, however, Hart left Hart-Parr after a disagreement with Charles City bankers. He then moved to Montana and created the Hart Refinery in Hedgesville. This company supplied gas and petroleum products to the ten filling stations owned by Hart. He expanded his refinery business in Missoula, Montana and remained in the oil refinery business until his death in 1937. Parr gave the eulogy at his funeral. Hart is buried in Riverside Cemetery, Charles City, Iowa.〔Morrell, Herbert T. ''Oliver Farm Tractors''. Osceola, WI: Motorbooks, 1997, pp. 13-14.〕 In 1929, Hart-Parr was one of the four companies that merged to form Oliver Farm Equipment Company. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Charles Walter Hart」の詳細全文を読む スポンサード リンク
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