From 1983 until 1990, Agendas International, was a private public affairs company registered with the U.S. Department of Treasury and paid by the Government of Nicaragua. The items in the collection document press involvement in the investigation of the Iran-Contra Affair from 1983 to 1989.

Charles McCurdy "Mac" Mathias Jr. (1922-2010) was a Republican member of the United States Senate, representing Maryland from 1969 to 1987. He was also a member of the Maryland House of Delegates and the United States House of Representatives. The collection includes material from Mathias's service in both the House of Representatives and the Senate dating from approximately 1958-1988.

Jean Eichelberger Ivey (1923-2010) was a composer, pianist, electronic musician, professor, and the founder of the Peabody Conservatory Electronic Music Studio, which she directed from 1969 until her retirement from Peabody in 1997. The Jean Eichelberger Ivey papers contain scores and recordings of Ivey's musical works, writings and notes by Ivey, personal and professional correspondence, programs and clippings, photographs, and other personal and professional papers.

10 CDs of performance photographs, recordings, and behind the scenes footage. 6 production manuals for lighting, sound design, and stage management. A written history of the barnstormers, and event posters and programs. A website series of 3 archived websites from 2015-Ongoing.

This is an artificially assembled collection of oral histories recorded with administration, faculty, staff, alumni, students, and other Johns Hopkins University affiliates, 1999-2004 and 2014-present. The early oral history interviews were faciliated by Mame Warren starting 1999, and as of 2014 by Hopkins Retrospective.

Mihály Virizlay (1931-2008) was a Hungarian-born cellist who had an international career as a concerto and recital soloist, was principal cello of the Baltimore Symphony Orchestra for 40 years, and taught at the Peabody Institute. The Mihály Virizlay papers contain published and manuscript musical scores, chiefly for cello, including Virizlay’s own compositions and arrangements. The collection also includes recordings, concert programs, newspaper clippings, and correspondence.

The Peabody Institute has regularly recorded concerts, recitals, and other events on campus since the 1960s. These recordings form the core of the Peabody Institute's sound and video recordings collection.

VIBES is a monthly concert series run by students of the Peabody Computer Music Department. This collection contains recorded performances, photographs, programs, and posters associated with VIBES concerts during the organization's first two years of existence, 2018-2020.

Sergio Cervetti left his native Uruguay in 1962 to study composition in the United States, graduating with a degree from the Peabody Conservatory in 1967 and later teaching music at the Tisch School of the Arts at New York University from 1972 to 1997. As a composer, he wrote more than 100 works drawing from electronic music, folk elements, European tradition, and minimalist aesthetics. The Sergio Cervetti papers contain scores and recordings of his works.

The Space Telescope Science Institute (STScI) is the science operations center for the Hubble Space Telescope and for the James Webb Space Telescope.These records reflect much of the administrative and scientific activities of the STScI, from the early planning stages of the Hubble Space Telescope in the 1960s to the Next Generation (James Webb) Space Telescope in the early 21st century.