 GLISA's graduates include many Latina and Latino librarians who are present-day leaders in the field.In 1980 Trejo cofounded Hispanic Books Distributors, a Spanish language book seller aimed at increasing the availability of Spanish-language materials to libraries in the United States.In 1992, Trejo, his sister Luisa Duenes Trejo, and his second wife, Annette M. Foster Trejo, created the Trejo Foster Foundation for Hispanic Library Education (TFF) which has sponsored national institutes for library education to serve the information needs of Latinos.