The answers for the quiz in the previous post are:
A) Chief Justice of the US Supreme Court $217,400
B) Judge, US Court of Appeals $179,500
C) Librarian of Congress $172,200
D) Register of Copyrights $158,800
E) US Senator $169,300
F) Vice President of the United States $221,100
A=6, B=5, C=1, D=2, E=3, F=4 [Source]
Answer to the extra credit problem: James Hadley Billington is the Librarian of Congress.
Also, US District Court judges made $169,300 in January of 2008 and US Magistrate judges made $155,756.