CDP10. The Great Lakes
Found in 4 Collections and/or Records:
This collection consists of business correspondence of the Winthrop Iron Company. This correspondence is in the form of letters and Western Union telegraphs. The materials cover the time span of August 1899 to October 22, 1901, the time period covering the take over of Winthrop Mine by National Steel. Correspondents are: Winthrop Iron Company, Oliver Iron Mining Company, I. B. Davis and Son, Manufacturers, Chapin Mining Company, M. A. Hanna and Company, and F. Braastad and Company.