Hart Parr #3 Tractor
Grade Range: K-12
Resource Type(s): Primary Source, Artifacts
Date Posted: 11/4/2008
After graduating from the University of Wisconsin, Charles W. Hart and Charles H. Parr developed a two-cylinder gasoline engine and set up their business in Charles City, Iowa. In 1903 the firm built fifteen tractors (a term coined by Hart and Parr), and the 14,000 pound #3 is the oldest surviving internal combustion engine tractor in the United States.
United States History Standards (Grades 5-12)