Thomas Jefferson to James Eastburn & Company, 2 April 1819, with Jefferson’s NoteThomas Jefferson to George Blackburn, 4 April 1819Thomas Jefferson to John C. Calhoun, 4 April 1819Thomas Jefferson to Robert S. Garnett, 4 April 1819Thomas Jefferson to William F. Gray, 4 April 1819, with Jefferson’s NoteThomas Jefferson to Rodolph Schaer, 4 April 1819Thomas Jefferson to Isaac H. Tiffany, 4 April 1819Thomas Jefferson’s Notes on the Wages of Michele Raggi and Giacomo Raggi, 17 February 1819–17 February 1820 