If you are seeking information on judges within the federal circuit, the following resources can get you started. Don't forget to also check each federal court's individual website, some of which will contain further information about a particular judge's case rulings.
Biographical Dictionary of the Federal Judiciary 1789-2000 (Available at Law Library Book Stacks, 3rd and 4th Floor KF8700 .A19 B48 2001).
Contains brief biographical sketches of all federal judges from 1789 to 2000. An appendix lists judges by appointing president from Washington to Nixon.
Court Listener. A non-profit website that contains a searchable database with information about thousands of judges from federal and state courts, including their biographical and educational background, judicial and non-judicial positions held, political affiliations, American Bar Association ratings, campaign finance data, and opinions authored.
Federal Court Locator
Library guide created by Villanova University, which contains links to federal judiciaries and opinions of federal courts. Some links include judges contact information as well.
History of the Federal Judiciary
Federal Judicial Center provides historical biographical information and professional resumes of federal judges since 1789. Also provides information on other selective judicial topics such as notable records of judicial service and judicial impeachments. Federal Judicial Center main website contains other useful content related to judges.
Judges of the United States, 2d ed. (Available online in HeinOnline).
Biographical information on all federal judges from 1789 to 1981. It contains indexes by appointing president and year of appointment.