1Thomas Jefferson to Patrick Gibson, 21 April 1818 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
2Thomas Jefferson to Patrick Gibson, 3 November 1818 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
3Thomas Jefferson to Patrick Gibson, 10 September 1819 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
4Thomas Jefferson to Patrick Gibson, 5 August 1817 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
5Thomas Jefferson to Patrick Gibson, 26 April 1817 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
6Thomas Jefferson to Bernard Peyton, 11 June 1822 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
7Thomas Jefferson to Bernard Peyton, 25 May 1822 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
8Thomas Jefferson to Archibald Robertson, [12] August 1817 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
9Thomas Jefferson to Archibald Robertson, 16 November 1821 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]