Bernard Flexner, a lawyer, philanthropist and Zionist leader, was an early supporter of the juvenile court movement. Contains the personal papers of Flexner, including diaries and letters to his sister Mary while he served with the American Red Cross Commission to Romania (1917) and as counsel for the Zionist delegation to the Paris Peace Conference (1918-1919); material concerning Albert Einstein, Franklin D. Roosevelt, the Sacco-Vanzetti trial record, and the juvenile court system of the early 1900s; and miscellaneous correspondence.

The Collection on William F. McCombs contains materials on and by William F. McCombs, a lawyer who was actively involved in Woodrow Wilson's gubernatorial and presidential campaigns. McCombs' secretary, Maurice F. Lyons, provided transcripts of correspondence and notes authored by McCombs to Arthur S. Link, as part of Link's work on The Papers of Woodrow Wilson. Correspondence between Lyons and Link concerning the typescripts is also located in this collection, as well as a set of bound newspaper clippings on Wilson's campaigns and administrations created by McComb's sister.

This collection contains interview transcripts, cassette tapes, and background material collected by Peggy Lamson for her authorized biography, Roger Baldwin, Founder of the American Civil Liberties Union: A Portrait. Much of the background material was provided, and in some cases annotated, by Baldwin and documents both his professional and personal life.

David Lawrence, Princeton Class of 1910, was an American magazine and news service founder, editor, columnist, and author. This collection contains papers of Lawrence, including correspondence with notable twentieth century figures, articles, speeches, correspondent dispatches, radio broadcast transcripts, and manuscripts for several books.

The Economists' National Committee on Monetary Policy, active from November 1933 to 1970, was composed of economists and other financial experts who sought to educate the public and United States government on sound monetary policy. The Committee advocated for a return to the gold standard and sought to combat what they saw as dangerous inflationist sentiment and aggressive monetary policies of the time through public addresses, publishing articles and pamphlets, and testifying before Congress. The records document the Committee's work, as well as its organization and administration, and include correspondence, meeting minutes, and publications.

Frank W. Notestein contributed significantly to the science of demography and to a better understanding of population problems in world affairs. The Frank W. Notestein Papers contain correspondence, speeches, and writings documenting the research, ideas, career and leadership roles of this former Princeton professor, director of the Office of Population Research, and president of the Population Council.

Charles W. Yost (1907-1981) led a varied career as a diplomat, United Nations representative, writer, and scholar. He was a member of the foreign service intermittently between 1930 and 1971, after which time he devoted himself full-time to writing and teaching. Yost's papers document his professional life in the Foreign Service, as well as his time in academia, and include his correspondence, writings, and photographs.

Howard C. Petersen (1910-1995) was an expert in international economics and foreign trade. He served in the War Department under President Franklin D. Roosevelt, as Assistant Secretary of War for President Harry S. Truman, as National Finance Chairman and fundraiser for the Dwight D. Eisenhower campaigns, and as Special Assistant on International Trade for President John F. Kennedy. Petersen was also a principal drafter of the Selective Service Act, a lawyer, and president of Fidelity-Philadelphia Trust Company. Petersen's papers document his entire career, especially his work with the new Security and Exchange Commission regulations as a lawyer in the 1930s and with the United States War Department during World War II, and include correspondence, articles, and publications.

William Byler was Executive Director of the Association on American Indian Affairs (AAIA) from 1962 to 1980. After leaving AAIA, Byler continued advocating for the Native American community, first at Gerard, Byler and Associates and later at William Byler Associates. Byler's papers document his work on behalf of the Native American community after leaving AAIA. The papers include legal memoranda, draft and final agreements between Native American communities and companies or government agencies, and court documents, as well as topical files of related legislation and reports on the issues.

Blair Clark was a journalist and political activist who held many positions in both spheres. His papers contain items related to his employment with CBS News, his role in the establishment of the Edward R. Murrow Chair at Harvard University's Kennedy School of Government, and personal correspondence.