1Bernard McMahon to Thomas Jefferson, 28 February 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
2Thomas Jefferson to George Divers, 18 March 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
3Peter Derieux to Thomas Jefferson, 11 May 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
4Bernard McMahon to Thomas Jefferson, 23 September 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
5Bernard McMahon to Thomas Jefferson, 24 September 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
6Bernard McMahon to Thomas Jefferson, 24 October 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
7Bernard McMahon to Thomas Jefferson, 24 November 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]
8Bernard McMahon to Thomas Jefferson, 1 December 1812 (Jefferson Papers)
McMahon, Bernard; sends plants to TJ [index entry]