List of U.S. Supreme Court justices who also served in the U.S. Congress

Since the Supreme Court of the United States was established in 1789, 116 persons have served on the court. Of these, several also served in the United States Congress, either before or after their tenure as a justice.

Source: Wikipedia — List of U.S. Supreme Court justices who also served in the U.S. Congress (CC BY-SA 4.0)