The Post-National Park Service Series consists of articles, brochures, clippings, correspondence, press releases, reports, and speeches.

Materials in this series cover the period 2001-2006. The bulk of the materials dates from 2002 to 2005, and documents Stanton's activities as a visiting professor at various universities and a private conservation consultant specializing in policy, planning and management after his second retirement from the National Park Service in January 2001.

Majority of the correspondence in the series are letters of appreciation and goodbye sent to Robert Stanton after he left the position of Director of the National Park Service in January 2001. There are letters inviting Stanton to deliver a speech or to participate in an event, and to serve on an organization's Board of Directors. Other correspondence relate to his work as a private conservation consultant and cover such topics as Stanton's suggestion that the Natural Resources Council of America appoint a task force to focus on achieving cultural diversity in its various activities; the National Trust for Historic Preservation seeking Stanton's help to broaden their programs and membership to reflect more accurately the true diversity of America; working with the Wilderness Society in relation to diversity in environmental organizations and programs; and Stanton's continued involvement with the International Union for Conservation of Nature to help increase the participation of youth in conservation. In addition, there are correspondence and memoranda relating to member organizations contributing to a Natural Resources Council of America study on cultural diversity in conservation organizations and programs and the results being incorporated in a series of reports authored by Stanton for the purpose of documenting current efforts and developing recommendations to increase cultural diversity in the conservation movement; a brief outline of study activities in which Stanton could be involved leading to the development of a diversity action plan for the Environmental Law Institute; and a meeting with U.S. Congressman James E. Clyburn (6th District of South Carolina) to introduce him to the executive officials of national environmental organizations and to discuss their goals and programs for improving the employment of African Americans, Native Americans, Hispanic and Asian Americans.

Materials relating to the Vth World Congress on Protected Areas are filed in the series. From 2001 to 2003 Stanton served as the International Union for the Conservation of Nature and Natural Resources' World Commission on Protected Areas ambassador for the Fifth World Parks Congress held in September 2003 in Durban, South Africa. The files contain brochures, schedule information, and correspondence pertaining the conference. There are also publications, papers and reports on topics such as young conservationists and the future of protected areas world-wide; indigenous peoples and protected areas; approaches to national park stewardship; people-oriented and authoritarian protection practices of managing protected areas; pro-poor conservation and a ten-point agenda for action; and sustainable tourism in protected areas.

Information pertaining to Stanton’s work as a visiting adjunct professor can be found in the series. Materials relating to the Yale University School of Environmental Forestry and Environmental Studies include brochures about the school, copies of the school’s bulletins, newsletters and Journal, correspondence and a press release about Stanton joining the school; and a notebook which contains copies of correspondence between Stanton and university officials about his coming to Yale to teach a course during the 2002 fall semester, drafts of the and materials related to the course. Few items relating to Stanton's later position as a visiting professor at Texas A&M University Department of Recreation, Park & Tourism Sciences can be found here. The majority of the materials relate to Stanton giving the keynote address at the "Promoting Cultural Diversity: New Approaches to Outdoor Recreation and Natural Resource Delivery" Conference held on the campus in November 2003, and include correspondence, memoranda, a contract, a purchase voucher, receipts, and a brochure about the conference.

Other materials filed in the series relate to the National Park Service, Robert Stanton, and other subjects. Information relating to the National Park Service include comprehensive surveys of the American public, the cultural resources diversity program, new units added to the national park system, and a report about rethinking the national parks for the 21st century. Newspaper clippings cover such topics as a task force looking at National Park Service law enforcement; invasive species threatening native plants and animals; terrorism and tourism; deferred maintenance at the national parks; and the renovation of the Old Administration Building at Stanton’s alma mater, Huston-Tillotson College. There is correspondence relating to Stanton's selection as the recipient of the 2003 national level Cornelius Amory Pugsley Medal, the James D. Maddy Internship Fund, Charter Day at Huston-Tillotson College, and the National Trust for Historic Preservation's National Preservation Conference in Louisville, Kentucky. Also included in this series is biographical information about Stanton and an oral history interview with him conducted by Janet A. McDonnell in 2004 and published in 2006. In addition, there are brochures on African American sites, various civil rights commemorative events, and awards programs, including the George B. Hartzog Lecture. Finally, there is a speech given by Stanton at the National Trust for Historic Preservation's National Preservation Conference in Louisville, Kentucky in October 2004.