11Thomas Jefferson to James Madison, 16 February 1820 (Jefferson Papers)
seeds; kale, sea [index entry]
12Thomas Jefferson to John H. Cocke, 12 March 1821 (Jefferson Papers)
seeds; kale, sea [index entry]
13Thomas Jefferson to John H. Cocke, 1 April 1821 (Jefferson Papers)
seeds; kale, sea [index entry]