1Thomas Jefferson to Dudley Richardson, 2 November 1809 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
2George Richardson to Thomas Jefferson, 22 December 1809 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
3Thomas Jefferson to George Richardson, 16 January 1810 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
4George Richardson to Thomas Jefferson, 18 March 1810 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
5John Graham to Thomas Jefferson, 19 July 1810 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
6Dudley Richardson to Thomas Jefferson, 4 March 1811 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]
7Thomas Jefferson to Dudley Richardson, 11 May 1811 (Jefferson Papers)
Richardson, Richard; and G. Richardson [index entry]