The Clark County Economic Opportunity Board (CCEOB), (1962-1973) was the regional legal body responsible for receiving and administering funds in Las Vegas, Nevada allocated under the Economic Opportunity Act, a part of the Johnson's Administration's War on Poverty Program. The collection concentrates on the high funding years from 1965 until the early 1970s, when the CCEOB disbursed funds to a variety of community action programs and organizations. Records are administration and project oriented and include meeting minutes, correspondence, financial and committee reports, personnel policies, job descriptions, funding information, appointments, program officer listings, as well as project applications and program descriptions.

The Chester R. Longwell Professional Papers (1886-1974) document Longwell's professional career as a geologist and his pioneering field work in Clark County, Nevada. Included are Longwell's field notes; manuscripts, articles and speeches related to geology; personal and business correspondence; professional publications; subject and name files; specimen tags; photographic prints, negatives, and slides; and geological and topographical maps, primarily of Nevada, California, Arizona, and Utah.

The Roger D. Foley Papers on United States v. Cappaert are comprised of materials collected by District Judge Roger D. Foley while performing his duties as judge in United States v. Francis Leo Cappaert, et al. from 1972 to 1976. The collection includes transcripts of the case, exhibits, and copies of motions filed with the Court in regards to this case, which centered on the protection of the Devils Hole pupfish in Nevada.

The Nan Doughty Family Collection dates from 1845 to 1993 and documents Doughty's personal and professional life. She collected correspondence and papers related to her extended family members including Sallie Bradford, Seymour Kimball Bradford, William Hillman Shockley, and May Bradford Shockley. The collection also includes papers from her father, Thorwald A. Siegfriedt, and her mother, Lou-vee Bradford Siegfried. Doughty used her family histories to write historical essays about early Nevada. The collection includes her professional papers as well as drafts and correspondence related to her writings.

The League of Women Voters of Las Vegas Valley, Nevada (LWVLVV) Records (1957-2021) contain meeting minutes, financial reports, correspondence, audiovisual material, photographs, and newsletters. Also included are materials on political issues, school integration, and environmental pollution issues in Southern Nevada.

The Jean Ford Papers (1958-1996) include political documents, campaign materials for Jean Ford's political campaigns, and materials pertaining to campaign issues such as health services, general improvement districts, and parks and recreation. There is extensive material on Red Rock National Conservation Area, Lake Mead National Recreation Area, and the National Issues Forum. Women's issues cover the years 1964-1981 and contain information relating to the League of Women Voters, Equal Rights Amendment (ERA), and International Women's Year (IWY), as well as Anti-ERA and Anti-IWY materials.

The Clark County Central Labor Council Records date from 1938 to 1968 and represent Ragnald Fyhen's written account of how the Clark County Central Labor Council union was formed. The work includes the activities and meetings of the labor union and Fyhen's work (1933-1947) while Secretary-Treasurer of the Central Labor Council. This work is entitled "Labor Notes." Additionally the collection contains a resolution submitted to the Central Labor Council in 1938 in regards to proposing new legislation to regulate the Clark County hospital.