Scope and Contents From the Series: The Detroit and Lake Superior Copper Company Records contain correspondence, financial records, and reports of General Managers John R. Grout and James R. Cooper and Chief Clerk Z. W. Wright. It includes records from its predecessors, the Waterbury and Detroit Copper Company and the Portage Lake Smelting Works, as well as its successors, the Lake Superior Smelting Company and the Tamarack-Osceola Copper Manufacturing Company.Note that the records of the Detroit and Lake Superior...

Scope and Contents From the Series:

This series includes articles of association and reports of mining companies filed with the clerk, as well as bonds for township officers, naturalization records, and other county records.