Photographs, 1920s-1990s, illustrating the commerical fishing business and passenger service businesses of the Kauppi family, first in Gay, Michigan and then in Copper Harbor, Michigan.

Records, 1934-1936, of the steamship S.S. SEMINOLE, a 188-foot steamer constructed for the U. S. Coast Guard and repurposed as a passenger ship in Houghton, Michigan after decommissioning by the Coast Guard. Includes correspondence, financial records, purchase order records, payroll records and passenger ticket stubs as well as other printed ephemera.

Freight books, 1878-1881, of the steamship IVANHOE. The mail steamer ran between L'Anse and Hancock, Michigan with mail, passengers and express freight. Details the consignor, consignee, description, and weight for freight carried.