Thomas Jefferson to John Barnes, 28 June 1818Thomas Jefferson to Mathew Carey, 28 June 1818Thomas Jefferson to James Madison, 28 June 1818Thomas Jefferson to Bernard Peyton, 28 June 1818Thomas Jefferson to Spencer Roane, 28 June 1818Thomas Jefferson to Horatio G. Spafford, 28 June 1818Thomas Jefferson to Littleton W. Tazewell, 28 June 1818Thomas Jefferson’s Notes on the Geographic Center of Virginia’s Population, [before 28 June 1818]Thomas Jefferson’s Draft of the Rockfish Gap Report of the University of Virginia Commissioners, [ca. 28 June 1818]Thomas Jefferson’s Notes on Curricular Definitions, [after 28 June 1818] 