Designer is a vague term which usually implies the task of creating or of being creative in a particular area of expertise. Often times it is used to reference someone who draws or in some ways uses visual cues to organize their work.
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1962 - Bruce McLaren[?], (New Zealand)
1963 - Graham Hill, (United Kingdom)
1964 - Graham Hill, (United Kingdom)
1965 - Graham Hill, (United Kingdom)
1966 - ...