1Thomas Jefferson to John Armstrong, 19 November 1819 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
2Benjamin L. Lear to Thomas Jefferson, 19 September 1821 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
3William Short to Thomas Jefferson, 25 May 1819 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
4John Barnes to Thomas Jefferson, 30 December 1817 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
5Thomas Jefferson to Pierre de Polética, 12 June [1819] (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
6Enclosure: Jozéf Zajączek to Pierre de Polética, 17 November 1818 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
7Thomas Jefferson to William Wirt, 27 June 1819 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]
8Thomas Jefferson to William Wirt, 5 February 1820 (Jefferson Papers)
Estko, Stanislaw; and T. Kosciuszko [index entry]