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 articles of incorporation; by-laws; updated mission statements; organizational policies and procedures; board minutes and accompanying materials including some financial statements, 1990-2009; newsletters, 1989-1994; letters; news clippings; and phone/drop-in logs.

The collection contains annual programs (1916-2010, missing 1922-1924, 1997, 2001, 2005-2008) that include list of officers; program committee; meeting dates for the year, the book for that meeting, the hostess’s name; a suggested reading list; a directory of members (local, associate, out of town); a photocopy of the 1916-1917 Program; a 1994 Constitution and By-laws; a Friday Book Club List (of books) 1994-1999

The collection contains constitution and by-laws; minutes, 1898-1930; scrapbooks, 1898-1982; yearbooks, 1910-1912; pamphlets and serials; membership directories; conference programs; and organizational histories. Some of the scrapbooks include photographs.

The collection contains reports, minutes, ledgers, correspondence, receipts, and publications.