Fonds consists of correspondence with fellow Crosby collectors and enthusiasts, drafts of essays and articles concerning Crosby written by Vogt, scrapbooks dedicated to Crosby, lists of Crosby recordings, publicity photos and movie stills, magazines, newsletters and other material that documents Vogt's ongoing interest in Bing Crosby's music and work.

Fonds consists of material that documents Hoffert's career as a composer, musician, author and arts administrator and includes musical scores from the 1950s to the 1990s, audio-visual recordings, administrative files, photographs, clipping and other memorabilia, copies of awards, diaries, e-mail correspondence, drafts of his books and other material.

Collection primarily consists of Witmer's audio-visual field recordings of interviews and musical performances, in addition to students' ethnomusicology research field recordings. His research files as an ethnomusicologist are also included and consist of lists, indexes, musical scores, notes, interview transcripts, programs, essays, newspaper clippings, song books, correspondence, and newsletters.