Erasmus D. Leavitt Papers

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Erasmus D. Leavitt Papers

1871-1917

Tracings on linen of steam engines of all types, pumping, histing, air compressing, mining, material handling, power transmission, mine structures, mining machinery, and buildings by Erasmus D. Leavitt, Jr. for Calumet Heclas, Inc. of Calumet, Michigan.

20.4 Cubic feet (3 boxes, 82 folders)

Related Entities

There are 2 Entities related to this resource.

Leavitt, E. D. (Erasmus Darwin) 1836-1916

http://n2t.net/ark:/99166/w60m06t8 (person)

Calumet and Hecla Mining Company

http://n2t.net/ark:/99166/w6x10xtg (corporateBody)

The Calumet and Hecla Consolidated Copper Company was the most successful corporation to have mined native copper in Michigan's Upper Peninsula. Through nearly a century of mining activity, the company produced in excess of 4.5 billion pounds of refined copper and issued over $200 million in shareholder dividends. Unlike many of its competitors along the Keweenaw Peninsula, Calumet and Hecla successfully expanded its operations over several separate mineral bodies, developed capital-intensive an...