Twenty-five collections comprise the Seeley G. Mudd Manuscript Library's holdings in American jurisprudence. These collections document important issues spanning the 20th century, especially civil liberties and civil rights, but also the history of the Supreme Court. Significant collections include the papers of Justice John Marshall Harlan, Judge Harold R. Medina, Edward S. Corwin, Alpheus T. Mason, the ACLU Records, and a lengthy transcript of an oral history interview with Justice William O. Douglas.
The Seeley G. Mudd Manuscript Library is the principal repository for the Princeton University Library's Public Policy Papers, which include important collections representing individuals and organizations in the areas of 20th century American foreign policy, jurisprudence, journalism, public policy formation, and international development.
