1John Barnes to Thomas Jefferson, 26 February 1819 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; wills of [index entry]
2John Barnes to Thomas Jefferson, 1 February 1819 (Jefferson Papers)
Kosciuszko, Tadeusz (Thaddeus) Andrzej Bonawentura; wills of [index entry]