University of Virginia
Miller Center at Uva: u.s. Presidents: John Tyler
An overview of John Tyler's presidency with links to his life, campaigns, and individual essays on aspects of his presidency.
University of Groningen
American History: Presidents: John Tyler
Presidents section of American History website provides primary text of John Tyler's four State of the Union Addresses as well as pertinent information on Inaugural Speeches.
US Department of State
Biographies of the Secretaries of State: Abel Parker Upshur (1791 1844)
Short bio on Abel Parker Upshur who was appointed interim Secretary of State by President John Tyler.