1Joseph Dougherty to Thomas Jefferson, 15 May 1809 (Jefferson Papers)
Burwell, William Armistead; mentioned [index entry]
2George Jefferson to Thomas Jefferson, 13 November 1809 (Jefferson Papers)
Burwell, William Armistead; mentioned [index entry]
3David Bailie Warden to Thomas Jefferson, 11 December 1810 (Jefferson Papers)
Burwell, William Armistead; mentioned [index entry]
4Joseph Milligan to Thomas Jefferson, 2 February 1812 (Jefferson Papers)
Burwell, William Armistead; mentioned [index entry]