This directory provides students of federal judicial history with the locations of and descriptions of the contents of manuscript collections related to federal judges, including Supreme Court justices and judges of the U.S. courts of appeals, U.S. circuit courts, U.S. district courts, territorial courts, and various special courts. The materials described in this publication are located in libraries and other institutions open to the public. Within the collections are documents judges have compiled in the course of their judicial careers, correspondence and records related to judges' professional and private lives, and records of judges included in the manuscript collections of other individuals and institutions.