Oliver Daniel was an American arts administrator, musicologist, radio director and producer, and composer. The collection includes correspondence, manuscript and printed scores, photographs, programs, clippings, scrapbooks and periodicals.

The collection comprises practically all the composer's works, mainly holograph manuscript scores in all major categories of composition. It also includes documents, correspondence (to and from Leonard Bernstein, Carlos Chávez, Elizabeth Sprague Coolidge, Aaron Copland, Henry Cowell, Vivian Fine, Alberto Ginastera, Paul Kletzki, Nicolai Malko, Eugene Ormandy, Arthur Rubinstein, Nicolas Slonimsky, Leopold Stokowski, and others), writings, programs, and scrapbooks.

Irving Fine was an American conductor, teacher, and composer whose works assimilated neoclassical, romantic, and serial elements. The bulk of the materials in the collection are musical scores and sketches which represent nearly his entire musical output. In addition, there are photographs, clippings, programs, and scrapbooks, as well as correspondence from twentieth-century musicians such as Leonard Bernstein, Aaron Copland, Lukas Foss, Alberto Ginastera, Ned Rorem, and William Schuman.

Lukas Foss was an American composer, conductor, pianist, and educator. The collection, which documents his life and career, consists of music holograph manuscript scores and parts, sketches, correspondence, business papers, programs, clippings, promotional materials, contracts, and financial documents.

American composer, conductor, arranger, and pianist. The collection contains music, including holograph and copyist manuscripts, printed scores, orchestral parts, lyric sheets, and sketches of Gould's compositions and arrangements; correspondence; business papers; writings; photographs; scrapbooks; programs and promotional materials related to his career; and financial and legal documents.

Journalist and diplomat. Personal and professional correspondence, writings, staff files, subject files, and other papers relating to Grunwald's career as a diplomat, author, and editor of Time, inc.

Arthur Laurents (1917-2011) was an American playwright, screenwriter and Broadway director. The collection, which documents his life and career, includes scripts, correspondence, datebooks, photographs, book drafts, production notes, programs, publicity materials, business papers, awards, clippings, and articles.

Harold Spivacke was a music librarian, administrator, musicologist, and musician. He was chief of the Library of Congress Music Division for thirty-five years, from 1937 until 1972. The collection contains materials relating to his life and career, including correspondence, student notebooks, speeches, his dissertation, photographs, clippings, programs, manuscript and printed music, artwork, awards and honorary degrees, and business papers.

The Rose Marie and Harold Spivacke Fund Collection consists of materials purchased through an endowment that Rose Marie Spivacke established in 1982 at the behest of her husband, Harold Spivacke, who was chief of the Music Division at the Library of Congress from 1937 to 1972. The collection includes music manuscripts, printed scores, correspondence, clippings, and iconography.

Louise Talma was an American composer, pianist, and teacher. She was a student of Nadia Boulanger and a long-time resident of Fontainebleau and the MacDowell Colony in Peterborough, New Hampshire. The collection consists of music manuscripts, harmony and teaching materials, correspondence, photographs, business papers, clippings, programs, publicity materials, writings, awards and other materials related to her career and her family's history.

Music teacher Mildred Spiegel Zucker was a childhood friend of Leonard Bernstein's, with whom she maintained a lifelong friendship. The collection mostly consists of correspondence that Bernstein sent to Zucker dating from his time as a counselor at Camp Onata, as a student at the Curtis Institute of Music, and during the beginning of his career in New York.