The Nevada-Utah Mines and Smelters Corporation Records (1889-1949) are comprised of the financial records of the company's activity regarding the Manhattan mine in Pioche, Lincoln County, Nevada. The collection contains bank records, accounts, and some correspondence, and is generally related to the company's financial activities. It also includes the company's financial vouchers, bills, receipts, and checks.

The Jim Ratigan Collection on Mike Miller (1982-2014) is primarily comprised of materials representing Mike Miller's involvement with creating Hey Reb! the official mascot for the University of Nevada, Las Vegas (UNLV) in 1982. Materials include meeting minutes from UNLV's mascot committee, various renditions of Hey Reb! created by Miller, newspaper clippings, as well as printouts of email correspondence from Miller to Jim Ratigan about the story of how he came to create the mascot. The collection also includes a copy of Miller's book, Larry the Last Leaf and a print of his painting, "Drawn to His Light." Also included are copies of programs for Miller's memorial service.