21Samuel J. Harrison to Thomas Jefferson, 13 March 1812 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
22Thomas Jefferson to Bernard Peyton, 11 June 1822 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
23Thomas Jefferson to Bernard Peyton, 25 May 1822 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
24Thomas Jefferson to Archibald Robertson, 29 September 1815 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
25Thomas Jefferson to Archibald Robertson, 28 March 1816 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
26Thomas Jefferson to Archibald Robertson, 27 August 1813 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
27Thomas Jefferson to Archibald Robertson, [12] August 1817 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
28Thomas Jefferson to Archibald Robertson, 12 December 1815 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
29Thomas Jefferson to Archibald Robertson, 1 June 1815 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
30Thomas Jefferson to Archibald Robertson, 16 November 1821 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]