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 administrative records, financial records, and historical records.

The collection contains news clippings 1904-1977; photographs, 1911; miscellaneous bulletins, articles of incorporation, constitution, meeting reports, plans 1910-1966; YMCA School’s standard course foremanship instructors manual, 1923; three scrapbooks; reports, including Camp Miller, 1927–1949; and a published history of the Duluth YMCA, The First 100 Years, 1882-1982.