The Arthur Walker Gregory Photograph Collection, approximately 1900 to 1920, consists of black-and-white photographic prints, and two corresponding negatives. Two of the images depict the first train to arrive in Las Vegas, Nevada from Salt Lake City, Utah in 1905, one with railroad employees in the foreground. The remaining images depict Arthur Walker Gregory’s class photographs at the Las Vegas Grammar School when he was in the first, third, and fifth grades.

The Mallory H. Ferrell Photograph Collection (approximately 1900-1935) is comprised of nine black-and-white photographic prints depicting railroads, locomotives, and mines in Tonopah, Nevada and Tecopa, California.

The Ray Tutaj Jr. and Harv Kahn Photographs (approximately 1990-2009) contain photographs and videos taken by Ray Tutaj Jr. and Harv Kahn of the Union Pacific Railroad and trains throughout Las Vegas, Nevada and the southwest region. Tutaj and Kahn were friends who were railroad enthusiasts and hobbyist photographers. Materials include photographic negatives and prints as well as digitized photographs.

Oral history interview with Sarann Knight Preddy, Elizabeth Warren, and Woodrow Wilson conducted by Porter Troutman on July 19, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. In this forum, Knight, Warren, and Wilson discuss the history of West Las Vegas, Nevada. Knight recalls arriving to Las Vegas in 1942 and describes the African American experience at that time. She talks about being the first woman of color to receive a gaming license, dealing cards, and the city ordinance which banned African American dealers. Wilson remembers the living conditions before federal housing and race restrictive covenants in housing. Then, Warren talks about the city's early years, the history of discrimination against African Americans in the city, and the significance of the railroad in Las Vegas. The group answers questions asked by audience members throughout the duration of the forum.

Oral history interview with Brenda Arnold conducted by Janet E. Prince on February 28, 1977 for the Ralph Roske Oral History Project on Early Las Vegas. Arnold discusses her career as a librarian, her religious activities in Las Vegas, Nevada, and viewing the above-ground atomic testing. She also recounts activities she did while visiting Lake Mead and Harris Springs at Mount Charleston.

Oral history interview with James W. Ault conducted by Patricia K. Kohlman on November 06, 1975 for the Ralph Roske Oral History Project on Early Las Vegas. Ault discusses the history of Las Vegas, Nevada from 1940 to 1975 and his career as a railroad engineer.