The aviation, aerospace and defense industries series contains reference files of newspaper clippings dating from 1946-1976.. The primary focus is on the Hughes Aircraft Company, in terms of the development of aviation, radar, avionics, missiles, space and communications, innovations, and the expansion of company operations. There are also a number of files that relate to the Hughes Tool Company and Howard Hughes Medical Institute, the general development of civilian and military aviation, aerospace, weapons systems, and defense issues.

Materials include conference brochures, schedules, presentations, and summaries related to gambling, horse racing, and casinos from 1976 to 2006 collected by Eugene Martin Christiansen. The materials are primarily comprised of brochures, information packets, copies of presentations by Christiansen and other speakers, travel arrangements, registration information, and invitations.