Lester ‘T’ Les David was a senior engineer at Cray Research. As an early employee he worked closely with Seymour Cray both at CDC and on the first Cray systems. A much liked and effective character that was very diligent in completing and shipping working products to customers whist supporting other engineers.
Read more in this article … The Ultimate Team Player Les Davis
and in the book The Supermen pp119
Also interviewed by the Computer History Museum — Les David CHM interview 102657915-05-01-acc
Les Davis also seen in the Movie “Cray Research – A story of the Supercomputer” Via YouTube.