The James Cashman Sr. Papers date from approximately 1890 to 1969 and contain correspondence, photographs, insurance records, and bank records related to Cashman and his businesses in Southern Nevada. The collection documents the lives of the Cashman family and their businesses in southern Nevada.

The collection consists of letters, greeting cards, survey maps, newspaper clippings, legal papers, photographs, collected recipes, land sales and expense journals, and survey reference books. The material was created or collected by pioneering Nevada surveyor, engineer, and real estate entrepreneur J. T. (John Thomas) McWilliams and his wife, Iona, between 1900 and 1968.

The Las Vegas High School architectural drawings include blueprints for various improvements, expansions, additions, and renovations performed for the Las Vegas, Nevada high school between 1929 and 1972. The architectural drawing sets include site plans, floor plans, elevations, sections, building component details, and structural drawings.

Collection contains nineteen real estate appraisal reports created by John R. Moser from Las Vegas and rural Southern Nevada (Lincoln and Nye counties) from approximately 1957 to 1972. The reports contain information on the market values of the properties and contextual information explaining the appraisals. This collection also contains photographs and photographic negatives depicting properties, and photographic slides of desert flora and landscapes around Nevada and Idaho such as Groom Mountain Range, White Bird Canyon, Salmon River Valley, Clover Valley, and Ruby Mountains.

The Alice Key Photograph Collection (1930s-1990s) is comprised of color and black-and-white photographic prints of activist, dancer, and journalist Alice Key with family, friends, political figures, and performers. Materials include photographs of Senator Howard Cannon, Louis Armstrong, and Bill Robinson, and signed professional head shots. Also pictured are Key's coworkers and unidentified performers.

The Oran K. Gragson Photographs depict Las Vegas, Nevada mayor and businessperson Oran K. Gragson from 1957 to 1981. The photographs primarily depict Gragson at political events with his wife Bonnie and other politicians such as U.S. senators Howard Cannon and Alan Bible, and Nevada Governor Paul Laxalt. The photographs also depict Gragson at groundbreaking ceremonies, Nellis Air Force Base, Las Vegas hotels and casinos, the mayor’s office, ribbon-cutting ceremonies, and with performers such as Wayne Newton, Sammy Davis Jr., and Lawrence Welk.