1John Vaughan to Thomas Jefferson, 1 May 1812 (Jefferson Papers)
oak; F. A. Michaux on [index entry]
2Thomas Jefferson to François André Michaux, 14 December 1813 (Jefferson Papers)
oak; F. A. Michaux on [index entry]
3Thomas Jefferson to John Vaughan, 8 February 1815 (Jefferson Papers)
oak; F. A. Michaux on [index entry]
4John Vaughan to Thomas Jefferson, 19 March 1815 (Jefferson Papers)
oak; F. A. Michaux on [index entry]