The Alpha Phi Omega, Alpha Iota Chapter Records date from 1925 to 2010, and contain scrapbooks, photograph albums, photographs, slides, administrative records, and several awards. Administrative records consist of meeting minutes, membership records, fraternity officers' notebooks, and alumni rosters.

The Earthday Society Records contain administrative files, exhibit material, photographs, 16mm films, and a magnetic video recording. The materials were created between 1970 and 1977. The majority of the collection pertains to a research project called "Student-Originated Studies," facilitated by the Ohio State University Research Foundation. The collection contains exhibit materials that the Society used to show the results of the study at the Ohio State Fair. Some materials in this collection were also acquired by the Society in response to the United States' first national Earth Day.