The Class of 1909 records, 1905-1975, contain materials describing the history and activities of the Class of 1909, including materials from commencement, reunions, senior dramatics, and other important events. Types of materials include photographs, invitations, songs, newspaper clippings, Class Secretary's records, and other memorabilia.

Individual biographical files are also available, and often include photographs, photo albums, newspaper clippings, letters and correspondences, and class notes.