This subseries contains audiovisual media in a variety of formats on a variety of topics from across Mikulski's career. The bulk of materials are recordings of speeches, interviews, and campaign ads.

Carol Lynn (1893-1987, born Carol Lynn Fetser) was a dancer and educator who was the co-director with Ted Shawn of the Jacob's Pillow ballet school. Lynn taught privately in Baltimore in the 1920s and 1930s and directed the Peabody Preparatory Dance Department from 1947 until her retirement in 1970. The Carol Lynn papers contain Lynn's choreography with corresponding musical scores, a collection of her 16mm dance films, and photographs, programs, and other documents related to her career.

Johns Hopkins University produced four educational television series between 1948 and 1960: The Johns Hopkins Science Review, Tomorrow, Tomorrow's Careers, and Johns Hopkins File 7. This collection consists of videocassette (VHS) copies of kinescopes of those television programs produced dating from 1948 to 1960.

Joseph Schillinger was a theorist and composer famous for developing the Schillinger System, a method of deconstructing music using geometric phase relationships. The collection contains correspondence, recordings, scrapbooks, photographs, artwork, manuscript scores, and other documents related to his professional and personal life.

The Johns Hopkins University Benefits office manages the employment benefits at Johns Hopkins University. The collection consists of benefit information spanning 1969 to 2004, including records of reimbursement accounts, retirement accounts, COBRA medical plans, flex forms, and other employee-related benefits material.