Record books, circa 1960-circa 1989, compiled by Michigan Technological University alumni Robert C. LaBelle. LaBelle worked in both the Upper and Lower Peninsulas of Michigan as a land surveyor, timber cruiser, timber buyer, log scaler and grader and logging engineer and this collection consists of his notebooks from his field work. Includes notations on types of wood, estimated board feet, land owners and disposition of the timber.

Unprocessed material, undated, removed from the Calumet and Hecla Public Library building in Calumet, Michigan. Includes mixed records and oversize material, mostly relating to the Calumet and Hecla Mining Company.

Records, undated, of the Upper Peninsula Power Company of Green Bay, Wisconsin. Also includes records from the Houghton County Traction Company and the Houghton County Electric Light Company, both of which were bought by the Upper Peninsula Power Company. Includes service contracts, right of way records, ordinances, permits, leases, stockholder lists, and miscellaneous printed ephemera.

Collection, 1897-1958, of William and Maud (Colenso) Rowe, residents of Michigan's Keweenaw Peninsula. Includes Maud's birth certificate, William's certificate of citizenship and miner's certificates from British Columbia as well as household bills, mortgages and contracts.

Records, 1935-1948, of the Work Projects Administration (WPA), previously Works Progress Administration, projects in Houghton County, Michigan.