Origins & Early Life

Benjamin Leroy Holt (January 1, 1849 – December 5, 1920) was an American businessman and inventor who patented and manufactured the first practical crawler-type tread tractor. The continuous-type track is used for heavy agricultural and engineering vehicles to spread the weight over a large area to prevent the vehicle from sinking into soft ground. He founded with his brothers the Holt Manufacturing Company. The youngest of four brothers and eleven siblings, the children of William Knox Holt and Harriet Parker Ames of Concord, New Hampshire.

Pivotal Works & Achievements

William Knox Holt owned a sawmill that made hardwood for wagon and coach construction. In 1864, Benjamin's brother Charles H. Holt arrived in San Francisco, California where he founded C. H. Holt and Co.

Enduring Legacy & Impact

The company produced wooden wheels for wagons and, later on, steel streetcar wheels. Brothers William Harrison Holt and Ames Frank Holt arrived in 1871. The company sold hardwood, lumber, wagon, and carriage materials, primarily manufacturing wagon axles, wheels, and frames. The brothers shipped hardwood from New Hampshire by ship to San Francisco. In 1869, Benjamin went to work in his father's sawmill, readying hardwoods for shipping...

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