John Dietz is a writer and photographer based in Arden, Manitoba, Canada. He has authored the books John Deere Two-Cylinder Buyer’s Guide and Classic John Deere Tractors, and he writes for several agriculture magazines.
In the 1960s and 1970s, John Deere’s tractors evolved dramatically from small machines into large, powerful tractors with modern advances and muscular engines; it was a period of the greatest changes since...