American Antiquarian Society to Thomas Jefferson, [received 7 April 1822]Enclosure: Report of the American Antiquarian Society, 23 October 1821, enclosure no. 1 in American Antiquarian Society to Thomas Jefferson, [received 7 April 1822]Enclosure: Prospectus for Archæologia Americana. Transactions and Collections of the American Antiquarian Society, [before 7 April 1822], enclosure no. 2 in American Antiquarian Society to Thomas Jefferson, [received 7 April 1822]Thomas Jefferson to John Barnes, 7 April 1822Thomas Jefferson to Thomas Cramer, 7 April [1822]Thomas Jefferson to Theodosius Hansford, 7 April 1822Thomas Jefferson to James Madison, 7 April 1822Frederick A. Mayo to Thomas Jefferson, 7 April 1822 