James B. Hill
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Hill worked as a drainage tiler in northwestern Ohio in the 1870s and 1880s, during which time he devised a machine that he later named the Buckeye Traction Ditcher (U.S. Patent 523-790; July 31, 1894). The Buckeye allowed for the quick placement of drainage tiles to aid in cultivation. After ridding northwest Ohio of its Great Black Swamp, Hill’s invention, produced by the Buckeye Traction Ditcher Company of Findlay, Ohio, went on to drain large parts of Florida and Louisiana.
Finding his early machines bogged down by the mud of Louisiana, Hill designed wheels that could travel over soft, wet earth. He termed this style of wheel "apron traction", and it became the forerunner for modern tank wheels (U.S. Patent 866-647; September 24, 1907 ).
Hill spent his last years breeding new varieties of corn which could flourish in Louisiana, most notably "Hill’s White Cob Yellow Dent". While visiting business associates in Florida at the turn of the 20th century, Hill designed an early amphibious vehicle.
The American Society of Mechanical Engineers designated an original Buckeye Steam Traction Ditcher as an "International Historic Mechanical Engineering Landmark" in 1988. This organization also maintains Hill's gravestone at Maple Grove Cemetery in Findlay, on which a ditcher is engraved. An antique ditcher can be seen today at the Hancock County Historical Museum in Findlay.
Hill and his first wife Ella MacDonald had 10 children. Near his death, he boasted of having more than 100 descendants. These descendants are scattered throughout the United States, with the majority living in southern Louisiana (centering around Raceland) and northwest Ohio (centering around Toledo).
- "US Patent 523790". 31 July 1894. Retrieved 4 October 2013.
- "US Patent 866647". 24 September 1907. Retrieved 4 October 2013.
- Buckeye Steam Traction Ditcher. Findlay, Hancock County, Ohio, USA: The American Society of Mechanical Engineers. 5 August 1988. p. 6.
- Hill, James B. (1945). Autobiography. Raceland, Louisiana, USA: James B. Hill. p. 200.
- H e a r t l a n d S c i e n c e - - The Ohio Academy of Science - at www.heartlandscience.org
- #133 Buckeye Steam Traction Ditcher (1902) - Landmarks at www.asme.org
-  American Society of Mechanical Engineers
-  Steam Traction