1Thomas Jefferson to Henry Dearborn, 27 October 1818 (Jefferson Papers)
Wilson, Alexander; and western exploration [index entry]
2Thomas Jefferson to James Wilkinson, 25 June 1818 (Jefferson Papers)
Wilson, Alexander; and western exploration [index entry]
3Henry Dearborn to Thomas Jefferson, 6 November 1818 (Jefferson Papers)
Wilson, Alexander; and western exploration [index entry]
4James Wilkinson to Thomas Jefferson, 4 August 1818 (Jefferson Papers)
Wilson, Alexander; and western exploration [index entry]