1Thomas Jefferson to John Barnes, 23 March [1820] (Jefferson Papers)
Barnes, John; health of [index entry]
2Thomas Jefferson to John Barnes, 5 May 1819 (Jefferson Papers)
Barnes, John; health of [index entry]
3Thomas Jefferson to John Barnes, 7 May 1815 (Jefferson Papers)
Barnes, John; health of [index entry]
4Thomas Jefferson to John Barnes, 7 April 1822 (Jefferson Papers)
Barnes, John; health of [index entry]