1John Barnes to Thomas Jefferson, 19 October 1813 (Jefferson Papers)
Barnes, John; health of [index entry]
2John Barnes to Thomas Jefferson, 5 April 1814 (Jefferson Papers)
Barnes, John; health of [index entry]
3John Barnes to Thomas Jefferson, 16 April 1814 (Jefferson Papers)
Barnes, John; health of [index entry]
4Thomas Jefferson to John Barnes, 7 May 1815 (Jefferson Papers)
Barnes, John; health of [index entry]