1Franz X. Zeltner to Thomas Jefferson, 29 October 1817 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; death of [index entry]
2Franz X. Zeltner to Thomas Jefferson, 14 April 1819 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; death of [index entry]