Joseph Holt (January 6,1807--August 1,1894) was U.S. Secretary of War and a U.S. Postmaster General under James Buchanan.
Joseph Holt (January 6,1807--August 1,1894) was a U.S. administrator. He served as U.S. Secretary of War, and then as U.S. Postmaster General from 1859 to 1860 under James Buchanan.