The Interstate Tractor Company was organized in Waterloo, Iowa in 1915. Intersate was formed from the reorganization of the Sandy McManus Engine Company. Their Plow Boy and Plow Man tractors were assembled using third party components. Interstate boasted a large domestic and international sales market by the end of World War I, but the company declined rapidly in 1919 and disappeared after 1920.
Model Power Years
Interstate Tractor Plow Boy 10-20 tractor photo Interstate Tractor Plow Boy 10-20 22hp 1916 - 1918
No photo available Interstate Tractor Plow Man 13-30 33hp 1916 - 1920
No photo available Interstate Tractor Plow Man 15-30 33hp 1918 - 1920