1Thomas Jefferson to John Barnes, 17 January 1810 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
2Thomas Jefferson to John Barnes, 29 January 1810 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
3Thomas Jefferson to John Barnes, 26 February 1810 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
4Thomas Jefferson to Tadeusz Kosciuszko, 26 February 1810 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
5Thomas Jefferson to John Barnes, 17 September 1810 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
6Thomas Jefferson to John Barnes, 10 January 1811 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
7Thomas Jefferson to John Barnes, 4 April 1811 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
8Thomas Jefferson to George Jefferson, 4 April 1811 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
9Thomas Jefferson to Tadeusz Kosciuszko, 16 April 1811 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]
10Thomas Jefferson to Joel Barlow, 11 May 1811 (Jefferson Papers)
Barnes, John; and T. Kosciuszko’s American investments [index entry]