Julius Rudel (1921-2014) was an opera and orchestra conductor who graduated from the Mannes School of Music in 1942. He served as music director for several organizations, most notably as director and principal conductor for New York City Opera from 1957 to 1979. The collection includes annotated conducting scores, notes, a scrapbook of news clippings, programs and playbills, correspondence, biographical material, and photographs.

Laura Johnson (died 2002) was a New York City socialite and wife of Saks Fifth Avenue executive F. Raymond Johnson. The collection is primarily comprised of photographic prints and press clippings documenting her extensive wardrobe of couture clothing and active social life between the 1950s and late 1990s.

Lea Hoyt (1912-1998) received a degree in graphic design from the New York School of Fine and Applied Art (later, Parsons School of Design) in 1933, and went on to a six decade career as a graphic and textile designer. The collection includes biographical material, correspondence, design drawings, photographs, and examples of Hoyt's work, represented by napkins and paper plates, among other items.

The Lucie Porges fashion design papers include biographical materials, fashion sketches, fashion illustrations and fashion photographs, and teaching records. It is of a primarily professional nature, with little documentation of Porges's personal life. The primary activities documented are Porges's fashion design work for Pauline Trigère and her teaching activities at Parsons School of Design.

Lyman Martin (1908-2003) graduated from Parsons School of Design in 1939 and joined Thedlow, an interior decoration firm. At Thedlow, Martin created interiors and watercolor renderings, and designed rugs and murals. In 1969, Martin became president of Thedlow, remaining until its closure in 1979. The collection includes student work, interior drawings, a travel diary, floorplans, photographs, clippings, and exhibition files.

The Mannes Camerata, founded in 1981 by Paul Echols, was Mannes College of Music's early-music ensemble. It was comprised of students, faculty, and graduates of the combined undergraduate and graduate early music programs at the Mannes, which joined The New School in 1989. The collection contains scores, schedules and program notes, photographic materials, librettos, press releases, and correspondence.

This collection contains several thousand photographs relating to the Mannes School of Music, from its early days in the 1910s through the 2000s, primarily representing the 1970s through the 1990s. Included are images of Mannes buildings; performances put on by different Mannes ensembles; administrative and academic events; the Mannes family; and Mannes personnel, including students, faculty, alumni, and guest artists and performers.

Margaret McKay Tee (1882-1955) came to New York from Cripple Creek, Colorado in 1902 to attend Cooper Union. Frank Alvah Parsons later hired Tee as a student instructor at the New York School of Art. After returning to Colorado, Tee carried on a correspondence with Parsons. Tee's papers include letters from Parsons, photographs of Tee's paintings, and an autobiographical essay relating Tee’s upbringing and her experiences as a young art student.

The Margaret Susan Daniell papers consist of biographical materials, a student notebook and drawings from her education at Parsons School of Design in the late 1920s, and two photographs. Daniell (1907-1998) studied fashion design at Parsons and later worked at Paramount Studios.