Correspondence, minutes of meetings, financial records, publications, notes, subject files, awards, speeches, reports and audiovisual materials document work by the Church Peace Union, its successors Council on Religion in International Affairs and Council on Ethics and International Affairs, and related organizations such as the World Alliance for International Friendship Through the Churches. The first installment of the CCEIA archival materials came to the RBML in 1974, with numerous additions over the years. A major addition in 1982 contained primarily the records of the Board of Directors and their semi-annual meetings, as well as the various programs and institutes of the Council, for the years 1972-1982, along with selected 1930s materials. 1986 addition contains presidential correspondence files, minutes of the Board of Trustees and committees, special projects, programs and conferences files, and the business and editorial files of "Worldview". Correspondents include John Foster Dulles, Jane Addams, Fiorello La Guardia, and Paul Tillich. 1990 and 2000 additions includes files of CCEIA presidents and vice presidents, paper and audiovisual materials on Merrill House Conversation Programs; Educational programs; International Monetary Fund/Lecture series; The Annals Of The Academy Of Political & Social Science; Washington Consultations; Colloquia for the Clergy; Church State Project; Asian Development & The Carribean Initiative; Korea: Year 2000 Project; fundraising files, printed materials and files of the Department of Publications.

Correspondence, manuscripts, documents, subject files, case files and printed materials. Both incoming and outgoing correspondence is included. The correspondence is primarily addressed to Clark Foreman, Edith Tiger, Leonard Boudin, and Victor Rabinowitz. The subject files include records of the "Bill of Rights Journal" published by the NECLC along with dinners and the annual Tom Paine Award presentations. Recipients in the past have been Bob Woodward and Carl Bernstein, Shirley Chisolm, Dr. Benjamin Spock, Tom Smothers, Pete Hamill, and NECLC officers Edith Tiger, Leonard Boudin, and Clark Foreman