The Orange County Historical Society (OCHS) is a non-profit group which collects, preserves and shares the history of Orange County, California for the benefit of its members and the general public.

Gregor Piatigorsky, the great master cellist of the 20th century, left a legacy of great music through his concerts, recordings, and films, and through his students. He also left a personal collection of approximately 19,000 items including photographs, music manuscripts, correspondence, concert programs, clippings, test pressings, commercial recordings, books, and ephemera. After his death…