Someone else may have beat me to this but...............Allis-Chalmers, Oliver (and later on White), Minneapolis-Moline, all brands of tractors you used to see around here, along with Ford, J.I. Case, Farmall, I-H. The latter are still around, just under new names now. Allis was a pretty popular brand around here at one time, and made some solid tractors. I had a "C" that we bought new in 1950, and it was used here for almost 50 years. M-M was never very popular here in this area, but you did see quite a few Oliver tractors.