1922 Hart-Parr tractor 12-24 | Charles W. Hart and Charles H… | Flickr
Hart-Parr Company – Wikipedia
TractorData.com Hart-Parr 28-50 tractor information
Floyd County Museum - Tractor Thursday! We love having two 70 tractors as it shows the transition of the company from Oliver Hart-Parr to just Oliver. Which style do you have or
1928 Hart-Parr 28-50 Tractors 40 to 99 HP for Sale | Tractor Zoom
Ruminations on a Hart-Parr 18-36H Tractor (1930) | Jack Elliott's Santa Barbara Adventure
Why Did Charles Hart Leave Hart-Parr? - Farm Collector
Hart Tractor fabricated by Maynard Steel - Milwaukee Polonia - UWM Libraries Digital Collections
TractorData.com Hart-Parr 28-44 tractor information
Hart Parr 16-30 | Manitoba Agricultural Museum
Hart-Parr | Tractor & Construction Plant Wiki | Fandom