Austrian-born American music theorist Felix Salzer (1901-1986) furthered the system of musical analysis developed by Heinrich Schenker and was a faculty member and executive director of the Mannes College of Music. The collection contains biographical information, Salzer's honorary doctorate from Mannes and materials and photographs relating to the degree conferral ceremony, as well as vacation photographs of Salzer and his wife, Hedwig Lindtberg.

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.