Correspondence relating primarily to negotiations for the Louisiana Purchase, the Monroe-Pinkney treaty with Great Britain (1807), the War of 1812, the purchase of Florida, South American independence, and Virginia politics; diary (1825 Feb.); account book containing memoranda and official and personal accounts (1794-1802); and other papers. Correspondents include John Adams, John Quincy Adams, John Armstrong, Joel Barlow, William Benton, James Bowdoin, John C. Calhoun, William Harris Crawford, Henry Dearborn, Thomas Erskine, George William Erving, Albert Gallatin, John Graham, Richard H. Henderson, David Humphreys, Andrew Jackson, Thomas Jefferson, Joseph Jones, Rufus King, Thomas Law, Robert R. Livingston, James Madison, John McLean, John Francis Mercer, William Pinkney, Edmund Randolph, John Randolph, Spencer Roane, C. A. Rodney, Richard Rush, John Taylor, Littleton Waller Tazewell, St. George Tucker, George Washington, and William Wirt.