1Thomas Jefferson to Bernard McMahon, 4 May 1811 (Jefferson Papers)
seeds; sent to TJ [index entry]
2Thomas Jefferson to Bernard McMahon, 16 February 1812 (Jefferson Papers)
seeds; sent to TJ [index entry]
3Thomas Jefferson to Bernard McMahon, 30 May 1813 (Jefferson Papers)
seeds; sent to TJ [index entry]
4Thomas Jefferson to Bernard McMahon, 15 June 1813 (Jefferson Papers)
seeds; sent to TJ [index entry]
5Thomas Jefferson to Bernard McMahon, 23 July 1815 (Jefferson Papers)
seeds; sent to TJ [index entry]