One of the dubious benefits of being a tractor historian is that fellow tractor enthusiasts tend to challenge me with complex enigmatical questions. For example, some months ago I was asked to name the best tractor ever produced. My ambiguous responseappeared in a recent article.Last week I was challenged with "Out of all the great pioneer tractor designers, which one contributed the most to the development of the modern tractor?"The inquirer, named Billy Duncan, was the highly intelligent teenage son of a grain farmer, whom I would describe as having an uncommonly prodigious knowledge of modern tractor technology - and was therefore entitled to a well considered response.
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