31Thomas Jefferson to William Wirt, 5 February 1820 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
32John Barnes to Thomas Jefferson, 23 August 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
33Thomas Jefferson to John Barnes, 10 September 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
34John Barnes to Thomas Jefferson, 18 September 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
35Benjamin L. Lear to Thomas Jefferson, 19 September 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
36Thomas Jefferson to John Barnes, 25 September 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
37Thomas Jefferson to Benjamin L. Lear, 25 September 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
38John Barnes to Thomas Jefferson, 5 October 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
39Thomas Jefferson to John Barnes, 16 October 1821 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]
40Enclosure: Jozéf Zajączek to Pierre de Polética, 17 November 1818 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; estate of [index entry]