The October 2007 Accession series includes materials received from Freedom House in October 2007. The majority of the records are composed of Board of Trustees meeting minutes from 1995 to 2006. Also included are books published by Freedom House, including their annual survey of political rights and civil liberties, and conference materials. Main topics include freedom of the press, democracy, women's rights, and the history of Freedom House.

The 2016 accession is primarily composed of reports, promotional materials, and other publications produced by Freedom House and materials from its board and executive committee meetings. The accession also includes former Executive Director Jennifer Windsor's testimony and correspondence, financial information and internal memoranda, documents related to Wendell Willkie and Freedom House's organizational history, various photographs, and materials pertaining to the United Nations, Community of Democracies, and Organization for Security and Cooperation in Europe.

The 2017 accession is primarily composed of planning and promotional materials related to Freedom House's free press survey, as well as biographical materials on individual board members and a subject file on Russia, Poland, Ukraine, and other Slavic countries. Copies of Freedom House's publications and press releases, including some publications in Russian, are also present. Of note are photographs from a demonstration in the 1940s, including a photograph of Eleanor Roosevelt, and maps of the world dated 1994, 1995, and 1998 ranking the status of each nation as either "free," "partly free," or "not free."

The Post-Secretary of State series documents Baker's activities following the end of the Bush administration and is divided into two subseries: The Baker Institute for Public Policy and Subject Files.

These records, transferred to Princeton University in February 2011, contain correspondence, Baker's personal tax returns from the 1950's through the beginning of the Reagan Administration, records of events Baker attended in the 1990s, and records documenting the writing of Baker's memoir.

These materials were kept in Secretary Baker's desk at the Baker Institute for Public Policy before being sent to the Mudd Manuscript Library. They include letters and notes from former presidents, secretaries of state, senators and first ladies; endorsements from Baker's 1978 Texas Attorney General race; and documents relating to Baker's appointment as Under Secretary of Commerce in 1975.

This series includes records from Baker's life after leaving public office, and is closely related to the materials in series 16.