1Thomas Jefferson’s Account with Joseph Milligan, [8–10 March 1809] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
2Enclosure: Thomas Jefferson’s List of Recommended Books, [ca. 4 October 1809] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
3Enclosure: Thomas Jefferson’s Catalogue of Books on Agriculture, [ca. 16 December 1809] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
4Thomas Jefferson to William Coolidge, 24 January 1811 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
5Enclosure: Thomas Jefferson’s Account with Joseph Milligan, [ca. 2 December 1811] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
6Bernard McMahon to Thomas Jefferson, 24 October 1812 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
7Bernard McMahon to Thomas Jefferson, 1 December 1812 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
8Thomas Jefferson: Book List, [after 6 October 1815] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
9Enclosure: Thomas Jefferson’s Catalogue of Books on Agriculture, [ca. 3 March 1817] (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]
10Thomas Jefferson to Fitzwhylsonn & Potter, 13 May 1817 (Jefferson Papers)
McMahon, Bernard; The American Gardener’s Calendar [index entry]