00:15:15 video overview of Encore: The Mississippi River Festival of the 1975 season of the Mississippi River Festival held at Southern Illinois University Edwardsville. Video was produced in 1976.

This photo shows Uptown String Quartet giving a demonstration at Southern Illinois University of Edwardsville.

This photo shows Uptown String Quartet giving a demonstration at Southern Illinois University of Edwardsville.

This photo shows Uptown String Quartet giving a demonstration at Southern Illinois University of Edwardsville.

This photo shows Three Dog Night performing at Southern Illinois University of Edwardsville.

This photo shows Three Dog Night performing at Southern Illinois University of Edwardsville.

This photo shows Three Dog Night performing at Southern Illinois University of Edwardsville.

This photo shows Three Dog Night performing at Southern Illinois University of Edwardsville.

Third draft of Script Adaptation of Drumvoices: The Mission of Afro-American Poetry (A Critical History), typed with handwritten edits, 1976. For presentation at book party on October 3, 1976: 3 p.m. to 6 p.m., Redwood Room, University Union,…

This photo shows Theodore C. Sorensen speaking at Southern Illinois University of Edwardsville.