1Gideon Fitz to Thomas Jefferson, 1 November 1809 (Jefferson Papers)
Spain; and U.S. land claims [index entry]
2George Logan to Thomas Jefferson, 9 December 1813 (Jefferson Papers)
Spain; and U.S. land claims [index entry]
3Gideon Fitz to Thomas Jefferson, 20 March 1816 (Jefferson Papers)
Spain; and U.S. land claims [index entry]
4Thomas Jefferson to James Monroe, 14 May 1820 (Jefferson Papers)
Spain; and U.S. land claims [index entry]