Correspondence, 1859-1867, between Perkins Burnham and various members of his family as well as some unidentified business correspondence. As a clerk in a general store in Eagle Harbor, Michigan, Burnham describes to his family his job dealing with the miners from the Copper Falls Mine and the Central Mines in addition to his living quarters, meals and entertainment.

Photograph collection, 1998, black-and-white photographs taken in 1998 by Nancy Fisher documenting the remaining Quincy Mining Company housing in the Keweenaw Peninsula of Michigan. Also includes photocopies of maps showing the different housing locations on Quincy Hill including Limerick, Pewabic, Lower Pewabic, and Sing Sing.

Scott Hotel Collection, 2012.

Records, 1901-1928, of the St. James Methodist Episcopal Church in Trimountain, Michigan. Photocopies include marriage and baptism records.

Constitution, 1904, of the St. Joseph's Society of Brotherly Aid, a mutual beneficial society for Polish Americans in Bessemer, Michigan. Text is in Polish.

Notebook, 1906-1918, of W. J. Richards, a master mechanic at the Champion Copper Co. of Painesdale, Michigan. Photocopy of 6 ring binder with published materials including different tables of weights, strengths and calculations. Near end of notebook are tables of calculations for the Champion, Trimountain and Baltic mines.

Papers, 1904-1911, of Walter G. Swart, a mining engineer associated with the American Zinc, Lead and Smelting Company. Includes correspondence between Swart and Calumet and Hecla Mining Company, as well as reports to stockholders for companies in Michigan's Keweenaw Peninsula, including Calumet and Hecla Mining Company, Osceola Consolidated Mining Company and Seneca Mining Company.

Collection, 1865-1987, compiled by Wesley E. Perron, an avid railroad enthusiast and Marquette, Michigan resident. Includes photographs, information and clippings about numerous area railroad companies, particularly the Copper Range Railroad and the Mineral Range Railroad.

Papers, 1864-1940, of William A. Childs, a Civil War veteran and long-time employee of the Calumet and Hecla Mining Company in Calumet, Michigan. Includes a transcription of a portion of Childs' diary during the Civil War, a history of Copper Harbor by Oliver A. Farwell, and photocopies of letters between sisters Charlotte Farwell and Sarah "Sallie" Scott.