The Cheryl Leonard Collection of Helldorado Parade Photographs (1955-1956) is comprised of black and white photographs of Helldorado Parade floats on Fremont Street in downtown Las Vegas, Nevada. The parade is part of the Helldorado Days, an annual festival sponsored by the Elks Lodge No. 1468.

The Eric A. Jamieson Photographs contain photographic slides of the Western United States' Intermountain region from 1955 to 1983. The bulk of the images are of the region's physical and urban landscapes and include Las Vegas, Nevada, the Las Vegas Strip and Fremont Street, Nevada mining towns, Red Rock Canyon, Mount Charleston, Valley of Fire, Lake Mead, and Death Valley.

The Marie and James B. McMillan Photograph Collection (1900-1994) contains photographs of Marie and James B. McMillan and their families. The collection also includes photographs of their friends and professional associates, including journalist Hank Greenspun, Nevada civil rights pioneer J. David Hoggard, and entertainer Sammy Davis Jr. Marie McMillan is a former Las Vegas, Nevada flight instructor and one of the first women to work at the Nevada Test Site in Nye County, Nevada. James B. McMillan was the first African-American dentist to practice in Nevada, as well as a prominent Nevada civil rights leader.