1Thomas Jefferson to Mathew Carey, 31 July 1820 (Jefferson Papers)
2Thomas Jefferson to Mathew Carey, 19 June 1821 (Jefferson Papers)
3Thomas Jefferson to Mathew Carey & Son, 14 August 1820 (Jefferson Papers)
4Thomas Jefferson to William Short, 4 August 1820 (Jefferson Papers)
5Thomas Jefferson to Joseph Echols, 23 May 1822 (Jefferson Papers)