The Records of Meetings Subseries is divided into two sections: volumes which are indexed from 1920 through 1973 and unindexed meeting records. This subseries also includes records of cancelled meetings. The actual records of the Council's meetings include invitations to the meetings, attendance lists, correspondence, (including letters between the Executive Director of the Council on Foreign Relations and potential speakers), background material on the speakers and the topics, a digest of the meeting (in early meeting records, transcripts are available; some later meeting records include evaluations), and miscellaneous materials relating to the meeting. Recordings of a portion of the meetings from the early 1950s through the late 1980s are present in the Sound Recordings Series.

Subseries 4A: Administrative and Production Files, 1937-2006 consists of files that often include a broad range of materials about Theatre Intime productions: plans, scripts, programs, photographs, clippings, etc. It also includes Theatre Intime newsletters, subscription letters, accounting books, and similar administrative materials.

The Miscellaneous subseries includes publications and testimony by ACLU staff members, positive and critical publicity about the ACLU, materials on the Biennial Conference, Board of Directors and Foundation Board meeting minutes, and correspondence.

The Publications subseries contains reports, pamphlets, and other publications by the ACLU and ACLU projects on the full range of civil rights issues addressed by the ACLU, including their "The Rights Of..." series of handbooks and "The Civil Liberties Review." The subseries also includes briefing books on HIV and anti-gay ballot initiatives, which are studies and information collected by the ACLU on these issues.

The Permanent Correspondence subseries contains correspondence between Kennan and scholars, government officials, and the general public. Most are at least one page in length and some include enclosures of copies of articles. Many of the letters contain discussions of ideas presented in articles or important current events and issues, such as Russian history and foreign policy, American foreign policy, U.S.-Soviet relations, and the arms race and nuclear disarmament. Kennan's correspondence with other scholars focused on the exchange of ideas and facts for works in progress or the analysis of recently published scholarship. Kennan also provided information about himself for others' biographical works about him or corrected their published interpretations of his opinions. Kennan's correspondence with government officials was largely concerned with his responses to their requests for advice on foreign affairs. Additionally, the subseries contains correspondence between Kennan and members of his extended family. In the correspondence, they discussed family news, planned visits, the countries Kennan was working or traveling in, and a little about his diplomatic work.

This subseries includes autograph and typescripts drafts, as well as galley proofs of writings of several Greek authors.

The Administration Subseries details the administrative work necessary to support the Study Groups of the Council. Subject files include records relating to programming, budget, staff files, and Studies Administration and Staff meeting records. The Miscellaneous files at the end of this subseries contain mainly memos and correspondence from the Study Group administration, but also lists, booklets, papers, and reports.

The Records of Groups Subseries consists of the records of a wide-ranging run of study groups formed to discuss policy with regards to American interests in regions and specific nations around the globe. Topics include labor relations, military build-up, trade negotiations, and technological (and corresponding social) advances. Material within the Records of Groups Subseries documents the progress and output of the groups themselves as they studied topics of international importance.

The General Files Subseries documents portions of the administrative functions of the Council. It includes subject files on various administrative matters, including rules and policies of the Council, relations with other organizations (including the Royal Institute of International Affairs, the Council's parallel organization in London), fundraising, and records on legal issues such as breaches of confidentiality, as well as attacks on and critiques of the Council. Other information included in this subseries documents anniversary planning and the history of the Harold Pratt House, the Council's New York headquarters. This subseries includes some significant documents from the Council's formative years, such as documents on the "Anglo-American Institute of Foreign Affairs," and information on the merger between its American branch and the existing Council on Foreign Relations (and materials from that earlier body); early drafts of a charter and statements of purpose, early correspondence, meeting minutes and membership lists; and documents on the development of the Foreign Affairs journal.

All of Morrison's novels except Song of Solomon are represented (this material was likely destroyed in the 1993 fire).

The Correspondence subseries contains general correspondence and memoranda regarding departmental matters. The documents in this series cover a wide array of topics related to the department's collections, staff, facilities, and policies. Nonetheless, the correspondence in this subseries is not comprehensive, and complements that which is found elsewhere in the series.

Subseries contains materials related to class reunions and parades.