1Thomas Jefferson to John Armstrong, 14 March 1819 (Jefferson Papers)
Treasury Department, U.S.; and T. Kosciuszko’s estate [index entry]
2Thomas Jefferson to John Barnes, 14 March 1819 (Jefferson Papers)
Treasury Department, U.S.; and T. Kosciuszko’s estate [index entry]
3Thomas Jefferson to Pierre de Polética, 12 June [1819] (Jefferson Papers)
Treasury Department, U.S.; and T. Kosciuszko’s estate [index entry]