April 19, 1780 | Letter Thomas Jefferson to George Rogers Clark, April 19, 1780 Thomas Jefferson writes to George Rogers Clark with concerns about the planned fortifications at the mouth of the Ohio River.
November 29, 1782 | Letter Arthur Campbell to Thomas Jefferson, November 29, 1782 Arthur Campbell writes to Thomas Jefferson about fossil finds in the West and possible a possible western border that may result from negotiations with the British.
February 8, 1784 | Letter George Rogers Clark to Thomas Jefferson, February 8, 1784 Responding to Thomas Jefferson's December 4, 1783, missive, George Rogers Clark regretfully opts out of any future U.S. expedition to the West. Clark does suggest that such an expedition be undertaken by a small group of men schooled in Native languages and traditions.
Banner image: From the Collection of The New-York Historical Society. Accession number 1867.306.
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