The J. T. McWilliams Photograph Collection contains photographs and postcards from Nevada and Southern California from approximately 1900 to 1970. The materials include postcards depicting Las Vegas, Nevada casinos such as El Rancho Vegas and the Golden Nugget Gambling Hall. The materials also include postcards depicting towns and scenes in Nevada such as Carson City, Rhyolite, Red Rock Canyon, and covered wagons traveling to Las Vegas. Lastly, the materials contain several photographs of the McWilliams family, possibly while they were living in what is now Las Vegas, Nevada.
On March 3, 1979, Michael Martocci interviewed Laura (born in California) and Don Garvin (born in Goldfield, Nevada) about their lives in Las Vegas, Nevada. The two provide details on their family background, the first sources of water in Las Vegas, and the early city limits. They also describe their early occupations, religion, gambling, the Mormon Fort, and the effects of the Great Depression. The interview concludes with a brief discussion on the development of the Las Vegas Strip and recreational activities.