1Thomas Jefferson to William or Reuben Mitchell, 18 December 1811 (Jefferson Papers)
earthquakes; near New Madrid [index entry]
2James Madison to Thomas Jefferson, 7 February 1812 (Jefferson Papers)
earthquakes; near New Madrid [index entry]
3Elizabeth Trist to Thomas Jefferson, 24 March 1812 (Jefferson Papers)
earthquakes; near New Madrid [index entry]
4Nathaniel G. M. Senter to Thomas Jefferson, 19 October 1812 (Jefferson Papers)
earthquakes; near New Madrid [index entry]
5Edward F. Bond to Thomas Jefferson, 5 January 1813 (Jefferson Papers)
earthquakes; near New Madrid [index entry]