The collection includes extensive holdings of jazz, blues, country and popular music; historic voices and authors reading their own works; vintage radio programs; classical and opera. The Marr holds a wide range of historic formats including LPs, 78s, 45s, cylinders, transcription discs, instantaneous-cut discs and open-reel tapes. The archives maintain sound recordings for a number of archival for collections shared with LaBudde Special Collections.[1][2]
The archives were created from a donation of 42,000 items by Olga and Gaylor Marr in 1987.[1] As of 2023, the archives hold over 400,000 recordings.[3]
