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, articles written by Pardee, notes and other reference materials. Most of the material concerns Pardee's Duluth, Minnesota civic activities, including the Great Lakes-St. Lawrence Tidewater Association correspondence (1918-1930), civic council material (1925-1928) and some correspondence and notes on "Pittsburg Plus" (1924-1927), an issue concerning unfair steel base prices.

The collection contains annual reports, 1954-1977, minutes, 1930-1977, correspondence, files by office divisions, legal materials, news clippings, publications, and photographs.