In 1837 he developed the steel plow & tested it on Lewis Crandall's farm near Grand Detour, Illinois
Ten 
years after he developed his first plow, John Deere was producing 1,000 plows a
... [DOC] [TLE] Steel Plow by Kylie Steel on Prezi [PAR] John Deere invented the steel plow in Grand Detour Illinois where he had settled.