Contains correspondence and files for musical events, radio and television productions, USO performances, newspaper clippings, etc. Also contains an extensive collection of orchestrations, original arrangements, music books, sheet music, music instruction books and individual music parts. The collection also has an extensive audio visual collection as well as studio recordings and commercial phonograph records. Check with library for more information on radio materials. A separate Jelesnik photograph collection, 1930-1999, has some material relating to KDYL and photographs of Ted Mack's 1957 visit to Utah, most likely to audition entertainers for Ted Mack's Original Amateur Hour.