The Marion Bard Corbet music manuscripts consist of all known musical works of the late Marion Bard Corbett (1915-1972), a Northwestern University alumna and Chicago-area composer. Included in this collection are music manuscripts, copies and published music scores, sketches, drafts, notebooks and other papers by Corbett.

The Richard Czerwonky Music Manuscripts and Papers contains manuscript and published scores of violinist, composer and conductor Richard Czerwonky (1886-1949) as well as a small subset of personal papers, writing and ephemera. Czerwonky was a prolific Chicago-based composer and conductor of German-birth who was active in the early decades of twentieth century and an influential figure in Chicago's classical music scene.

The John Giles music manuscripts and papers consist of music manuscripts (predominantly vocal music including art songs, duets and choral works), programs, photographs, audio recordings on compact disc and correspondence.

The Ariadna Mikéshina Music Manuscripts and Papers comprise a collection of the Russian-born emigre composer’s music in manuscript and published editions as well as some programs, notes and correspondence documenting her career. Mikéshina composed songs, works for solo piano, solo instruments with piano accompaniment as well as works for chamber ensembles, orchestra and music for ballet and plays.

The Elizabeth Augusta Wrightson Collection consists of 135 arias and other songs chiefly from Italian operas of the bel canto style. Approximately 100 contain detailed performance markings including ornamentation, expression marks and cadenzas.