1Edmund Bacon to Thomas Jefferson, [before 1 August 1820] (Jefferson Papers)
Census, U.S.; of1820 [index entry]
2Thomas Jefferson to Daniel Brent, 19 March 1822 (Jefferson Papers)
Census, U.S.; of1820 [index entry]
3Daniel Brent to Thomas Jefferson, 23 March 1822 (Jefferson Papers)
Census, U.S.; of1820 [index entry]
4James Madison to Thomas Jefferson, 7 May 1822 (Jefferson Papers)
Census, U.S.; of1820 [index entry]
5John Quincy Adams to Thomas Jefferson, 5 July 1822 (Jefferson Papers)
Census, U.S.; of1820 [index entry]
6Thomas Jefferson to John Quincy Adams, 5 September 1822 (Jefferson Papers)
Census, U.S.; of1820 [index entry]