Charles Henry Parr

Charles Henry Parr (March 18, 1868 – June 10, 1941) was an American mechanical engineer, inventor, and pioneer in developing the gasoline-powered agricultural tractor and cofounder of the Hart-Parr Company.

He attended high school in Dodgeville, Wisconsin, before attaining a degree in mechanical engineering from the University of Wisconsin–Madison, where he met his future partner, Charles Walter Hart.

[3] After graduation, while still in Madison, Parr and Harr established a small engine company.

They then moved to Charles City, Iowa, where Hart was born,[3][4] and started the Hart-Parr Company.

He was also an active member of the Freemasons, including high priest of the Royal Arch Masons and commander of the Knights Templar.