Hoover? Hoover? Was he a vacuum cleaner salesman? In 1896, Mr. Louis Janin, a successful California mining engineer, employed W. H. Clark, a veteran surveyor and a recent graduate of Stanford, Mr. Hoover. Janin sent the two men on a survey trip in the Four Mile District. They were to “run a line on a syphon just north of Craig, Colorado.” Translated: they were to survey an area planning to use a syphon to pipe…