The Jamey Stillings Photograph Collection (2009-2019) is primarily comprised of photographs taken by professional photographer, Jamey Stillings, of the Mike O’Callaghan-Pat Tillman Memorial Bridge and the Hoover Dam project, the Ivanpah Solar Electric Generating System project, and the Crescent Dunes Solar project. The Mike O’Callaghan-Pat Tillman Memorial Bridge and the Hoover Dam project depict the construction of the Mike O’Callaghan-Pat Tillman Memorial Bridge from 2009 to 2012. The Ivanpah Solar Electric Generating System project depict aerial views of Ivanpah Solar in the Mojave Desert of California from 2010 to 2014. The Crescent Dunes Solar project consists of a range of aerial and ground-based work documenting SolarReserve's Crescent Dunes Solar, a 110MW concentrated solar plant with molten salt storage near Tonopah, Nevada, from 2014 to 2015.

The Helen J. Stewart Photographs depict the Stewart Family from approximately 1860 to 1950. The photographs primarily depict Helen J. Stewart and her children as well as the Stewart Ranch (also know as the Las Vegas Ranch) in Southern Nevada. The photographs include the early Las Vegas, Nevada town site, landscapes of Southern Nevada and the American Southwest, mines and mining camps, railroads and railroad workers, the Las Vegas Fort (also known as the Old Mormon Fort), hotels and early businesses in Las Vegas, Native Americans and Native American artifacts, and postcards.