The collection contains annual reports, legal records, correspondence, committee materials, financial records, publications, photographs and ten scrapbooks.

The collection contains promotional materials, pamphlets, correspondence and lists from the Minnesota Committee of the American Historical Association Endowment.

The collection contains correspondence, reference materials, photographs, and Red Cross publications. Most of the material originated from the chapter's World War I activities, and reflects the relief programs in effect during that war.

The collection contains correspondence, financial materials, articles, pamphlets, photographs, news clippings, sketchbooks, a tape recording, and miscellaneous reference materials. Most of the records originate from the period between 1940-1958 and document Barnes' financial interests and his involvement in the St. Lawrence Seaway project. Some personal correspondence is also included.

The collection contains correspondence, reference materials, speeches, news clippings, publications and photos.

This collection consists of papers, photographs, citations, and memorabilia of Lewis G. Castle during and preceeding his term as Administrator of the St. Lawrence Seaway Development Corporation.

The collection consists of correspondence and subject files of Director Richard Kunz; Minnesota Chemical Dependency Association Board minutes, newsletter, and section minutes for Region II; research files; newsclipping scrapbook for the Center; a small amount of Center office records; and local, state, and national published materials on durg and alcohol use, abuse, treatment, policy, law and issues.

The collection consists of information gathered by William Coventry for his book Duluth's Age of Brownstone.

The collection contains correspondence, diaries, articles and addresses written by Darling, a subject file, personal financial materials, news clippings, photographs, and engineering plans.

The collection contains minutes; correspondence; materials collected at annual state conventions; publications, including news clippings, newsletters, anniversary report, and forget-me-not day publications; and membership cards.

The collection contains administrative records, financial records, and historical records.

The collection contains correspondence, subject files, and legislative files from Gary Doty's term in the Minnesota House of Representatives.

The collection contains correspondence and subject files concerning Ralph Doty's activities as Minnesota State Senatro.

The collection contains correspondence, 1926-1967; Minnesota Centennial reference materials, 1968; a handwritten catalog of Bardon's personal collection of historic weapons, Indian artifacts, miscellaneous antique items and books, it includes detailed descriptions and infomation on type, condition, and provenance, 1911; newsclippings, 1926-1968, and photographs, 1930-1958.

The collection consists of the Commission's files incuding: application to the American Revolution Bicentennial Commission to become a bicentennial city, articles of incorporation and by-laws, financial records, correspondence, manuscripts on local history that were published in the book Duluth: Sketches of the Past, project files by month, Voyageurs Canoe Trip reenactment files, news clippings, brochures and programs, photographs, and proposals.

The Duluth Board of Trade records include information about the functioning of the Board of Trade from its inception in 1881 to the dissolution of the company in 1972.

The collection contains programs, correspondence, photographs, reference materials, three scrapbooks, news clippings, account sheets and one film.

The collection contains two minute books; news clippings, 1933-1971; correspondence, 1890-1986; articles of incorporation and by-laws, 1902; pamphlets; and photographs. 

The collection contains correspondence, bulletins, publications, news clippings, scrapbooks, photographs, posters, personnel lists, and other reference materials from the war activities of the organization. The records were collected from a variety of sources, such as the Duluth Public Library, the War History Division of the Duluth Civilian Defense Council, and individuals. Parts of the collection, therefore, are sporadic and incomplete.

The collection contains correspondence, minutes, financial records, publicity materials, news clippings and programs.

The collection contains minutes, financial books, annual reports, publications, maps, miscellaneous correspondence, news clippings, photographs, timetables, and microfilmed scrapbooks. Financial records represent the largest portion of records, and there is a significant lack of executive records.

The collection consists of minutes, correspondence, reports, scrapbooks, newspaper clippings, and campaign literature.

The collection consists of correspondence, annual reports, financial reports, monthly clinical statistical reports and educational materials.

The collection contains correspondence, minutes, financial and membership records, service certificates, reference materials, photographs and blueprints of three Duluth G.A.R. organizations.

The collection consists of printed company promotional materials; professionally shot photographs; snapshots of workers, Greyhound drivers, Greyhound buses, and Greyhound depots and facilities; and correspondence regarding certain motor coaches.

The collection contains personal and professional papers: family correspondence, professional correspondence, literature files, laboratory research reports and notebooks, organization files, grants files, laboratory slides and photographs.

The collection, arranged alphabetically by subject, contains reference materials, correspondence, photographs, minutes, and bulletins.

The collection contains correspondence,1906–1923; legal materials; news clippings, 1918–1924; and pamphlets. Legal materials include petitions and complaints to the Federal Trade Commission and miscellaneous resolutions.

The collection contains correspondence, minutes, reference materials, contracts, maps, blueprints and news clippings.

The collection consists of materials gathered by King about many railroads but primarily the Duluth, Missabe and Iron Range Railway and its predecessor railroads Duluth and Iron Range Railway, and  Duluth, Missabe and Northern Railway.