The collection consists of correspondence, reports, designs, specifications, and photographs, relating to dams, dam sites,
and hydroelectric power plants in Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Wyoming, British
Columbia, and Mexico.
John Samuel Eastwood was born on a farm near Minneapolis, Minnesota in 1857. Family tradition holds that his grandfather,
Arent van Oosterhout, served as a Royal Dutch Engineer in the 18th century with responsibility for dike construction in low-lying
regions of Holland. Although proud of his family heritage -- and the engineering activities of his grandfather -- John nonetheless
"Americanized" his name from Oosterhout in 1878 in anticipation of entering the commercial and professional world.
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