1James Ogilvie to Thomas Jefferson, 16 March 1815 (Jefferson Papers)
Blackburn, George; professor at South Carolina College [index entry]
2John Wood to Thomas Jefferson, 18 July 1815 (Jefferson Papers)
Blackburn, George; professor at South Carolina College [index entry]
3Thomas Jefferson to John Wood, 5 August 1815 (Jefferson Papers)
Blackburn, George; professor at South Carolina College [index entry]
4George Blackburn to Thomas Jefferson, 8 March 1819 (Jefferson Papers)
Blackburn, George; professor at South Carolina College [index entry]