The Katherine A. Spilde Papers on Native American Gaming include materials collected by anthropologist Katherine Spilde about Native American gaming and the greater gaming industry. The materials date from 1789 to 2015, with the bulk of materials dating from 1995 to 2010. Materials dating from the eighteenth and nineteenth centuries are reproductions of key court opinions and treaties concerning Native American rights and sovereignty. The majority of the materials document Native American gaming following the passage of the 1988 Indian Gaming Regulatory Act (IGRA). The papers detail Native American gaming enterprises both on and off reservations, the socioeconomic impact of gaming, and the legislative history of Native American gaming in the United States. The papers include research and subject files created by Dr. Spilde during her employment with the National Gambling Impact Study Commission (NGISC), the National Indian Gaming Association (NIGA), and the Harvard Project on American Indian Economic Development (HPAIED). The collection includes socioeconomic reports; testimonies; correspondence; memos; press releases; photographs; audiovisual materials; promotional materials from casinos and tourist attractions; brochures; fact sheets; summaries; booklets; pamphlets; advertisements; tourism materials; journal articles; legal briefs; legislative documents; court opinions; Dr. Spilde’s notes; presentations; packets, agenda, schedules, and itineraries from conferences; periodicals; Native American and community newspapers; and newspaper articles. The collection includes materials about over one hundred federally recognized Native American nations. Also included are materials that document the socioeconomic impact of gaming, the international gaming industry, criminal activities related to gaming, advertising about gaming and casinos, lotteries, internet gaming, compulsive gambling, and bankruptcy as a result of gambling.

The Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (1904-1925) are comprised of various records from the mining companies owned and operated by businessmen Charles S. Sprague and Benjamin Gill who were active in the central Nevada boomtowns of Goldfield and Tonopah in the early twentieth century. Documents include correspondence, receipts and invoices, detailed records and copies of government legislative bills relating to the mining industry, and other business correspondence. Sprague's collection consists of his mining business correspondence dating from 1906 to 1925. Gill's papers are comprised of his business correspondence from 1916 to 1922.