The Harmon Family Photograph Collection contains black-and-white and color photographic prints, negatives, postcards, and slides of the Harmon family in Las Vegas and Boulder City, Nevada between approximately 1900 and 1983. Las Vegas photographs depict the Harmon family in their home, at a ranch, and at Las Vegas High School. Boulder City photographs include a wedding and a view of Black Canyon, Nevada. Lastly, the collection also includes photographs of the Harmon family with various people, including the Wengert family and Howard Cannon, at receptions, ceremonies, and posing in front of Las Vegas buildings.

The Richard Ronzone Photographs depict Las Vegas, Nevada storeowner and politician Richard “Dick” Ronzone and his family from 1920 to 1989 and 2001. The photographs primarily depict Ronzone at Ronzone’s Store in Las Vegas, at events with politicians such as Nevada Governor Paul Laxalt, or at the Las Vegas Valley Water District. The photographs also depict Ronzone during his service with the Nevada National Guard; portraits of Ronzone, his wife Ann Roeth Ronzone, and his mother Bertha Ronzone; and events during Ronzone’s tenure as a Clark County Commissioner from 1972 to 1980.

The Las Vegas Chamber of Commerce Records (1911-2020) contain organizational documents from the Chamber’s history, including administrative and financial records, legal documents such as ordinances and legislation, newsletters and promotional guides, advertising and publicity materials for the city and its retailers, and original photographic prints, negatives, and reproductions. The collection also contains audiovisual materials featuring Las Vegas Chamber of Commerce events from approximately 1997 to 2013.

The Southern Nevada Historical Society Photograph Collection on Basic Magnesium, Inc. contains photographs of the construction of Basic Magnesium Inc.'s plants and buildings from 1941 to 1942. The photographs primarily depict aerial views of the plant site and various buildings, including the administration building, tent camp, chlorination buildings, electrolysis facilities, electrical distribution systems, and warehouses. The photographs also depict Lake Mead and the early buildings in Henderson, Nevada.

Ronzone Family Papers (1900-1991) include newspaper clippings, business documents, correspondence, certificates, yearbooks, publications, artifacts, and photographs. The papers document their lives in Nevada, their department store, and Dick Ronzone's involvement in local politics.