Gloria Coates is an American composer who studied at Columbia University with Jack Beeson and Otto Luening. These papers include correspondence, concert programs and business records related to her activities as director of the German-American Contemporary Music Series in Munich from 1970 through 1986.

Correspondence, manuscripts, documents, photographs, and printed materials documenting the life of Harold Melvin Triggs. The correspondence is primarily personal and from other musicians. There are concert prograpms from various points in Trigg's career and photographs primarily of Triggs and Vera Brodsky. There are manuscript and printed scores mainly of piano music but of some orchestral music as well. There is also a scrap book made by Triggs as a small child