Kenneth S. Deffeyes

Kenneth S. Deffeyes was a geologist who worked with M. King Hubbert, the creator of the Hubbert peak theory, at the Shell Oil Company research laboratory in Houston, Texas. He claimed Chickasaw ancestry.

Deffeyes made a lively personal impression. McPhee characterized him in ''Basin and Range'' (1981): "Deffeyes is a big man with a tenured waistline. His hair flies behind him like Ludwig van Beethoven. He lectures in sneakers. His voice is syllabic, elocutionary, operatic. ... His surname rhymes with 'the maze.'" Provided by Wikipedia