The Archives contains research materials on Lakeside, Danbury Township, Marblehead Peninsula, and other U.S. historic independent Chautauquas. The collection is catalogued within four areas:
- Objects – an artifact or physical object describing art, archeology, natural history, geology, and history;
- Photographs – record of people, places, events, and architecture at a specific point in time;
- Archives – unpublished materials such as documents, manuscripts, oral histories, videotapes, personal papers, maps and music; and
- Library – published books, periodicals, newspapers, pamphlets and recordings.
The current collection includes the following:
- The Lakeside Chautauqua collection: season programs, newspapers, publications, clubs, societies, directories, cottage files including photographs, property transfer records from 1873, performers and speakers index by date from 1880 to present; and Association historical files;
- The Lakeside-Marblehead Peninsula collection: newspapers published since 1881, subject and year files from 1875 to present; and obituary index on permanent or summer residents;
- American independent Chautauquas;
- Lakeside Volunteer Fire Department historical files 1905-2013;
- Over 10,000 historic photographs and postcards;
- Oral histories, family portfolios, dairies and scrapbooks from the early 1900s;
- Ohio Methodist Conference bulletins;
- Hymnals, Sunday School books; temperance and camp meeting song books;
- Area transportation history by railroad or boat;
- Area maps;
- Preservation and remodeling books, including materials received through a grant from the Institute of Museum and Library Resources; and
- Genealogy materials published by the Ottawa County Genealogy Society.
The Media collection: slides used for Lakeside presentations, audiotapes of sermons delivered by visiting clergy (mostly during the 1980s and 1990s) and a few DVDs of delivered presentations.