Diplomas, circa 1934, awarded to Leo Baillargeon of Lake Linden for various academic accomplishments, as well as an undated photograph of his parish pastor, Rt. Rev. Msgr. Napoleon J. Raymond.

Collection, mostly undated, of glass slides collected by the Michigan Technological University Archives in Houghton, Michigan. Includes a Michigan College of Mines alumni reunion in 1911, miscellaneous copper and iron mining scenes, a photographic print of the Calumet and Hecla dredge, and images of the ammonia leaching process at the Calumet and Hecla Lake Linden plant.

Papers, 1849; 1866-1944, of Oliver A. Farwell, a famous botanist and grandson of Daniel D. and Lucena Brockway. Includes business and personal correspondence, photographs, and records.

Papers, circa 1922-circa 1939, of the Schleeter family of Lake Linden, Michigan. Includes correspondence, financial documents, ledgers, certificates, clippings, and photographs.

Oral history project, 2013-2015, capturing the memories of ten individuals who lived or worked in the industrial communities lining Torch Lake in Houghton County, Michigan in the middle 1900s.

Collection, 1973-1994, of research papers, reports and bibliographies about Torch Lake in Lake Linden, Michigan. Includes material prior to, during and after the designation of Torch Lake as an Environmental Protection Agency Superfund Site.

Records, 1908-1940, of the Traprock Valley Grange No. 1316, located in Houghton County, Michigan. Includes subordinate grange record book, dues account and roll books, quarterly reports, dues receipt books, bills, receipts and correspondence as well as a ritual manual and Journals of Proceedings publications.