Harbors -- Great Lakes (North America)

Abstract

This collection documents the history of Hulett unloaders, machines designed by George Hulett to empty the cargo holds of Great Lakes freighters. These machines greatly increased the efficiency of the unloading process beginning in the early 20th century. A major portion of the collection is made up of architectural plans and drawings, but also contains correspondence, reports, newsclippings, and photographs, 1908-1990.

Abstract Included are c.2,600 navigational charts for the years 1849-2002. The charts in this collection were primarily published by the United States and Canada, with occasional examples from state and provincial sources. General charts of the Great Lakes region appear along with those for individual lakes, and harbors. Connecting rivers and canals are also represented. Although most charts apply to waterways in the Great Lakes basin, a small number of charts for the Atlantic Coast and the...