1Thomas Jefferson to Fitzwhylsonn & Potter, 13 May 1817 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
2Thomas Jefferson to Mathew Carey, 10 May 1818 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
3Mathew Carey & Son to Thomas Jefferson, 16 May 1818 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
4Thomas Jefferson to Mathew Carey, 21 June 1818 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
5Thomas Jefferson to Mathew Carey, 28 June 1818 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
6Mathew Carey & Son to Thomas Jefferson, 5 July 1818 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]