11Patrick Gibson to Thomas Jefferson, 12 May 1819 (second letter) (Jefferson Papers)
12Wilson Cary Nicholas to Thomas Jefferson, 1 June 1819 (Jefferson Papers)
13Thomas Jefferson to Arthur S. Brockenbrough, 2 July 1819 (Jefferson Papers)
14Thomas Jefferson to John Hollins, 2 July 1819 (Jefferson Papers)
15Thomas Jefferson to Thomas Perkins, 2 July 1819 (Jefferson Papers)
16Wilson Cary Nicholas to Thomas Jefferson, 5 August 1819 (Jefferson Papers)
17Thomas Jefferson to Patrick Gibson, 11 August 1819 (Jefferson Papers)
18John G. Robert (for Patrick Gibson) to Thomas Jefferson, 16 August 1819 (Jefferson Papers)
19Thomas Jefferson to James Monroe, 17 August 1819 (Jefferson Papers)
20Wilson Cary Nicholas to Thomas Jefferson, 17 August 1819 (Jefferson Papers)