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.
Other
Tulane University: Crisis at Fort Sumter: Salmon P. Chase
This site provides a lengthy biography of Salmon P. Chase, including his role as Secretary of the Treasury under Abraham Lincoln.