The Irene Dalis-Loinaz Papers (1831-2015, bulk 1950-2000) contain vocal scores, librettos, writings, opera research materials, correspondence, photographs, administrative records, and audiovisual materials relating to her career as an international mezzo-soprano vocalist, the development of Opera San Jose, and, to a lesser extent, her tenure as professor at San Jose State University. The bulk of the collection is related to Dalis’ career as an opera singer as well as the founder of Opera San Jose. It is comprised of librettos, annotated vocal scores, correspondence, contracts, photographs, newspaper clippings, and audio-visual recordings relating to her education, career, and subsequent fame. The collection also contains notebooks, family files, photographs and audiovisual materials detailing aspects of Dalis’ personal life. Also included are reports, news-clippings, and other opera- and music-related publications in regards to the development of Opera San Jose and Dalis' own interests in music. The majority of the files in the collection retain their original folder titles when applicable.