1Thomas Jefferson to Bernard McMahon, 8 April 1811 (Jefferson Papers)
Gibson & Jefferson (Richmond firm); and plants and bulbs acquired by TJ [index entry]
2Thomas Jefferson to William & Samuel Craig, 27 December 1811 (Jefferson Papers)
Gibson & Jefferson (Richmond firm); and plants and bulbs acquired by TJ [index entry]
3Thomas Jefferson to George McIntosh, 15 March 1812 (Jefferson Papers)
Gibson & Jefferson (Richmond firm); and plants and bulbs acquired by TJ [index entry]