The University of Nevada, Las Vegas Phi Lambda Alpha Records (1968-1984) include memorabilia documenting and describing the organization's activities and procedural operations.

The Joseph C. Ives Personal Correspondence consists of seventeen photocopied letters between United States Army Corps of Topographic Engineers Lt. Joseph C. Ives and his wife, Cora Semmes Ives, between September 1857 and June 1858. Ives was in command of a U.S. Army expedition whose mission was to explore the region of the Colorado River and the Grand Canyon, and to establish the limit of navigation of the Colorado River. The correspondence is largely personal in nature, however, it is a useful supplement to the official report documenting the voyage, "Report upon the Colorado River of the West; Explored in 1857-1858."

The Thomas J. Osborne Photograph Collection (approximately 1890-1930) consists of black-and-white photographic prints, negatives, and slides. Images depict the family of Thomas J. Osborne, his law office, the family home, and views of the town of Pioche, Nevada and surrounding areas. Several images depict local mines and unidentified mine workers.