The New York-New York Hotel and Casino 9-11 Heroes Tribute Collection consists of materials from the "Heroes of 9-11" display that was at the New York-New York Hotel and Casino in Las Vegas, Nevada from 2001 to 2012. The materials primarily consist of more than 5,000 t-shirts left at the memorial by visitors to Las Vegas, mostly from fire departments and law enforcement agencies from around the United States. Visitors left shirts and other items at the memorial as a sign of respect for the men and women who died during the terrorist attacks in New York City and Washington, D.C. on September 11, 2001. The collection also houses memorabilia and other items left at the memorial, including flags, hats, pins, buttons, flowers, and embroidered emblems and insignias. The materials also contain documentation of the memorial, including promotional and press materials, video recordings from the news media, photographs, and newspaper articles.

The Goldfield Consolidated Mines Company Records (1904-1930) consist of correspondence, invoices, receipts with voucher checks, mining leases, insurance policies, payroll accounts, published notices and articles. Also included is a monthly Goldfield Consolidated Mines reports ledger from February 1914 to October 1916 for mines located in the south central Nevada area. The collection primarily dates from 1904, before the consolidation when the boom in Goldfield was beginning in earnest, until 1919, when the company ceased its operations in Goldfield, although there are a few records post-1919 as the company continued to exist after the mines and mill closed down.

The C. A. Earle Rinker Papers (1880-1960) contain materials that document the history of early twentieth century Goldfield, located in central Nevada, as well as the life of Rinker. Materials in the collection include correspondence, mining prospectuses, maps, ledgers, souvenirs, photographic negatives, and ephemera that document mining and daily life. Also included is biographical material that tells the story of Earle Rinker and his family before 1906 and after 1909, documenting his life in Indiana and Illinois.

The Donn Arden Papers (1910s-1990s) document Arden's sixty-plus years in the entertainment industry working in showrooms and nightclubs all over the world including Paris, France, Las Vegas, Nevada, New York, New York, and Los Angeles, California. Donn Arden worked as a choreographer, producer and director known for creating extravagant production shows that combined spectacular scenery and disaster with sequined and feathered showgirls. The collection is comprised of production notes, programs, photographs, posters, sheet music, correspondence, costume design sketches, press clippings, and magazine articles.