The collection contains manuscript letters and brief notes from Nadia Boulanger to her former student Charles Bleefield, including a letter of recommendation in 1947 and several brief greetings in the two decades that followed. Also included are invitations to two memorial services for Lili Boulanger and an Igor Stravinsky autograph.

Franz Carl Bornschein (1879-1948) was a composer of more than 200 works, primarily vocal music, and a professor of violin and composition at the Peabody Conservatory. His papers include scrapbooks, clippings, correspondence, photographs, personal papers, manuscript and printed scores, and the personal papers of his wife, Hazel Knox Bornschein.

The Glenroy C. Stein papers contain scores and method books written by Stein and various other composers. Also included are personal papers which include newspaper clippings, correspondence, posters, and concert programs.

Howard Thatcher was a pianist, organist, composer, and teacher in the Baltimore area. He was an alumnus of Peabody who taught harmony, counterpoint, orchestration, and composition for the Peabody Conservatory. The Howard R. Thatcher papers contain his manuscript and published scores as well as personal papers.