John Morton was an American racer, who competed in SCCA Club races, as well as Formula 5000, the Can-Am series, and the IMSA series.  Driving for the BRE team (Brock Racing Enterprises), Morton won the SCCA C Production class with the Datsun 240Z (National Championships in 1970-71) and the under 2.5 liter Trans-Am with the Datsun 510 (Championships in 1971-72).

Morton’s Heuer

John Morton received a Heuer Carrera 45 Dato, as a prize for winning the 1970 SCCA national championship, at Road Atlanta.  Shown above is a recent photograph of this watch, with a certification from Morton.

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References

A biography of John Morton, in Wikipedia.

A description of the Datsun 510 campaign, in the Trans Am series.