1Thomas Jefferson to Thomas Ritchie, 19 June 1818 (Jefferson Papers)
Gibson, Patrick; and payments made for TJ [index entry]
2Thomas Jefferson to Thomas Ritchie, 7 December 1818 (Jefferson Papers)
Gibson, Patrick; and payments made for TJ [index entry]
3Thomas Jefferson to Thomas Ritchie, 14 February 1819 (Jefferson Papers)
Gibson, Patrick; and payments made for TJ [index entry]