Federal Reserve Bank
Federal Reserve Bank of San Francisco: Civil War Money
Resource gives a history of money through the Civil War. It includes information about what influenced types of money to be made, Confederate currency, and Union currency.
US Department of the Treasury
U.s. Department of the Treasury: History: Salmon P. Chase (1861 1864)
The Office of the Curator of the Department of the Treasury provides a brief account of the life of Salmon P. Chase, including his role as President Lincoln's Secretary of the Treasury from 1861 to 1864.