The Jean Lloyd-Jones Papers date from 1964 to 2021 and measure 12.5 linear feet. The papers are divided into the following series: Biographical, Equal Rights Amendment, International Women's Year, 1977, Iowa Peace Institute, League of Women Voters, Legislative Campaigns, Legislature, Public Service, Rocket Unlimited, Heartland Railroad Company, Iowa Sister State -Yamanashi, Japan, United States Senate Campaign, and Other Organizations and Activities. The bulk of the papers relate to Lloyd-Jones' work with the Iowa Peace Institute.

The Biographical series (1969-2013) includes nomination papers regarding Jean Lloyd-Jones' induction into the Iowa Women's Hall of Fame in 2003 as well as, newspaper articles and materials relating to her education at the University of Iowa. This series also contains her master’s thesis from Antioch University, genealogical research on her parents’ lineage, and two scrapbooks including images and newspaper clippings spanning across two decades.

The Equal Rights Amendment series (1977-1978) includes material relating to state and national efforts to extend the ratification deadline for the amendment. Most of the material consists of flyers and programs from events and related newspaper clippings.

The International Women's Year, 1977 series (1976-1977) consists of planning and publicity materials, correspondence, financial reports, press releases, newspaper clippings, memorabilia and final reports of the Iowa and National Women's Year Conventions.

The Iowa Peace Institute series (1984-2003) contains material relevant to the work and mission of the organization. These include Administrative Records, including correspondence, committee minutes, financial and fundraising information, historical background of the organization, and information on staff; Conference material; Conflict Resolution materials; Global Education materials; Newsletters; Publications; Information about organizations with which the Peace Institute has worked cooperatively; Soviet-United States Outreach efforts by the institute; and notes and transcripts of speeches made on behalf of the institute by Jean Lloyd-Jones and other officers of the institute.

The League of Women Voters series (1964-1978) contains material used in the Juvenile Justice Project, including budget, conference planning materials, a project proposal, and the script of a videotape produced by the project; material from Iowa state and national conventions, including speeches and information packets; information on proposed state reapportionment in the 1970s; and the texts of speeches made by Lloyd-Jones as president of the LWV.

The Legislative Campaigns series (1976-1993) contains various material used in all six of Lloyd-Jones' political campaigns. This series includes candidate biography and questionnaire answers, advertising material, photographs, speeches, and press releases made during the campaigns. Her 1992 US Senate campaign is covered in a later series.

The Legislature series (1979-1985) contains material used during the first two terms Lloyd-Jones served in the Iowa Legislature. The material includes background material and drafts of proposed legislation, study material on issues which might become the subject of future legislation, speeches, photographs, correspondence, and press releases. Additionally, a selection of newspaper clippings from her years of service are included.

The Public Service series (1977-1987) contains correspondence, minutes, publications, and reports of the various public posts held by Lloyd-Jones such as Iowa 2000, and the Governor's Task Force on Government Ethics.

The Rocket Unlimited series (1983-1986) consists of correspondence, business and financial records, press releases, newspaper clippings, and memorabilia pertaining to Lloyd-Jones' investment in the railroad excursion business.

The Heartland Railroad Company (1979-1993) series consists of a scrapbook and correspondence about Lloyd-Jones’ work revitalizing Iowa’s railroads. This series also includes various resources concerning issues with the early 1990s Amtrak expansion, the viability of high-speed rail and light rail lines in Iowa, and rail line maps of the Midwest.

The Iowa Sister State, Yamanashi, Japan (1995-2001) series relates to the exchange visits between Yamanashi and Iowa that Lloyd-Jones participated in.

The United States Senate Campaign (1992) series includes correspondence, scrapbooks, a journal, campaign handouts, newspaper clippings, and resources relating to Lloyd-Jones' unsuccessful bid for the U. S. senate in 1992.

The Other Organizations and Activities series (1971-2014) contains material reflecting Lloyd-Jones' wide range of interests and activities, including speeches she gave, fund raising efforts, and work she has done with a plethora of different organizations to promote causes she cared about.