Records, 1898-1988, of the Copper Country Dairy, Inc. of Dollar Bay, Michigan. Includes deeds and construction plans, financial records, inventory lists, distribution documents, marketing data and operational data as well as bankruptcy and closing documents and an embossing stamp. Also includes some records from the Copper Country Cheese Co-op, Inc.

Collection, 1973-2009, of material from the Keweenaw Cooperative Inc. of Hancock, Michigan. Includes minutes and correspondence of the Board of Directors, minutes from general membership meetings, newsletters, land contract for the storefront, recordings of annual picnics and photographs.

Photograph collection, circa 1940, of photographs of the Lake Superior Fisheries. Depicts commercial fishing and fish processing in Hancock, Michigan.

Manuscripts, 1990-1994, written by Martin Kaurala of Mass City, Michigan. Contains memoirs and recollections of growing up in the Finnish-American community in Michigan, especially the political and social aspects of the co-operative in the community. Manuscripts include "The Co-operative Experience," "Meditations of 1992," "The Mass Co-operative Company," "Interesting Experiences and Random Thoughts," and "Potpourri of 1994," as well as recollections of a stump farmer and lumberjack.

Records, 1918-1969, of the Mass Co-Operative Company of Mass, Michigan with branches in Bruce Crossing and Baraga. Includes an account ledger, bills, receipts, stock certificates, and a check book with canceled checks.

Records, 1976-1982, of the Superior Foods Cooperative Inc. in Ahmeek, Michigan. Includes organizational records, financial records and newsletters from Superior Foods as well as records from other cooperatives in the area. Includes bylaws, stock certificates, membership information, order forms and newsletters from Common Health Warehouse Cooperative Association in Duluth, Minnesota, their food supplier, and newsletters from the Keweenaw Cooperative Inc. in Hancock, Michgan.

Records of the Tossava family relating to the Finnish Workmen's Co-Operative Company and the Kearsarge Store Company in Kearsarge, Michigan.

Transcript, 1987, of "U.P. the Hard Way," a talk given by Walter Koski for the Ontonagon County Historical Society in Ontonagon, Michigan. Details his early life in Winona, Michigan; his return to Finland shortly after its independence from Russia; and his illegal return to the United States, using his brother's papers. Also details his career with various cooperative societies in Michigan, Wisconsin and Minnesota.

Photograph collection, 1957-circa 1965, of the U.P. Fisheries, Inc., a fisherman-owned co-operative in Hancock, Michigan. Includes photographs of the processing building, equipment and workers in the cleaning, filleting and packaging room. U.P. Fisheries, Inc. is probably a subsequent name of Lake Superior Fisheries, a fisherman-owned co-operative active during the 1940s.