Oral history interview with William French conducted by Connie Degernes on November 18, 1974 for the Ralph Roske Oral History Project on Early Las Vegas. French discusses life living near Boulder (Hoover) Dam in Boulder City, Nevada.

Oral history interview with William Nickell conducted by James Greene on January 07, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. In this interview, Nickell discusses his job at the Boulder (Hoover) Dam and his life in Boulder City, Nevada.

Oral history interview with Leo Dunbar conducted by Connie Degernes and Helen Littleton on February 24, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Dunbar discusses the construction of Boulder (Hoover) Dam.

The James H. Down Jr. Photograph Collection (approximately 1915-1940) consists of black-and-white photographic prints and negatives, as well as color photographic slides and postcards. The images depict scenes in and around Las Vegas and Goodsprings, Nevada. Also included are Glenn Davis' photographs of the Hoover Dam (Boulder Dam), Black Canyon, the Colorado River, and Lake Mead. Most of the images portray the construction phases of the Hoover Dam.

Oral history interview with Joseph Kine conducted by Eileen Reedy on February 14, 1972 for the Ralph Roske Oral History Project on Early Las Vegas. Kine discusses Boulder City, Nevada and the Boulder (Hoover) Dam.

Oral history interview with Neil H. Holmes conducted by Laura Bell on February 12, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Holmes covers the construction of Boulder (Hoover) Dam and Las Vegas, Nevada’s living conditions in 1931.

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.