Other
Global Security: 54 40 or Fight
Describes the significant territorial changes that took place in the United States under the presidency of James K. Polk. These included the annexation of Texas, the settling of the dispute with Great Britain over claims to Oregon...
Smithsonian Institution
National Portrait Gallery: 1846: Portrait of a Nation
This site provides a glimpse into the United States in the year 1846. James Polk was president and the Westward Expansion was in full force. The site has nice historical photographs.
University of Virginia
Miller Center at Uva: u.s. Presidents: James Knox Polk: Domestic Affairs
Read about the domestic policies of the Polk Administration.