1Archibald Robertson to Thomas Jefferson, 1 June 1815 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
2Archibald Robertson to Thomas Jefferson, 3 April 1816 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
3Patrick Gibson to Thomas Jefferson, 22 December 1815 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
4Patrick Gibson to Thomas Jefferson, 7 July 1814 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]
5Samuel J. Harrison to Thomas Jefferson, 13 March 1812 (Jefferson Papers)
Robertson, Archibald; TJ pays [index entry]