U.S. Supreme Court Justices from Private Practices

Thanks to the Law Librarian Blog (10/11/2005)
for this post:

"There have been 41 Supreme Court Justices who
had no prior judicial experience before joining the
Court. They include some of the most influential
justices in the history of the Court, such as William
Rehnquist, Earl Warren, Robert Jackson, William O.
Douglas, Felix Frankfurter, Louis Brandeis, Salmon
P. Chase, Roger Brooke Taney, Joseph Story and
John Marshall. However, only eight of the 41 justices
came to the Supreme Court from private practice."

A detailed chart of Supreme Court Justices without
prior judicial experience can be found on Findlaw.