...who hold their offices at the will of the President. 1. 1 3. 1 6. 6. 7. 8 9. 10. 11. 12. 13. Geirsfe Washington, John Adams, Thomas Jefferson, James. Madison, James Monroe, John Quincy Adams, Andrew Jackson, Martin Van Buren, William Henry Harrison,* John Tyler, James Knox Polk, Zachary Taylor,*...