Thomas Jefferson papers, 1775-1825 | APS Digital Library

: Thomas Jefferson to Benjamin Smith Barton, September 21, 1809.

: Thomas Jefferson to Charles Thomson, 1781 December 20

: Thomas Jefferson to Dr. William Thornton, 1815 February 9

: Thomas Jefferson to John Stuart, November 10, 1796.

: Thomas Jefferson to Joseph Nicolson, May 21, 1814.

: Thomas Jefferson to Matthew Carey, 1816 October [November] 11

: Thomas Jefferson to Robert Patterson, August 9, 1812.

: Thomas Jefferson to Robert Patterson, March 21, 1811.

: Thomas Jefferson to [John] Vaughan, April 8, 1818.