The collection includes minutes of the Aftenro Society, some written in Norwegian; historical logs; scrapbooks; correspondence; annual reports; and photographs.  It also includes one audiotape of Mrs. Arnold Berg, Aftenro historian, recounting the history of Aftenro Society.

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 articles of incorporation, bylaws, annual reports (1940, 1946, 1948, 1954), titles, leases, deeds, stock certificates, financial statements; a list of salesmen (1953); annual roundup program; photograph of George Hill, John Howe, Sig Soberg (1957), and John Hutman; business letters; promotional material; product advertisements; John Patterson correspondence; a company history; and newspaper articles about the company.

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

The collection contains newsletters, club historian's files and scrapbook, and subject files.