May 21, 1784 | Letter Thomas Jefferson to James Monroe, May 21, 1784 Thomas Jefferson worries about the evolving western borders and territory of the United States.
November 21, 1789 | Letter Thomas Jefferson to William Short, November 21, 1789 This letter illustrates Thomas Jefferson's interest in, and knowledge of, weather and the science of measurement, as he recounts the tribulations of a sea voyage.
March 12, 1791 | Letter Thomas Jefferson to William Short, March 12, 1791 Tensions with European powers create worries for Thomas Jefferson as he writes to William Short with concerns over the navigation of the Mississippi.
March 18, 1792 | Report Thomas Jefferson to George Washington, March 18, 1792 A detailed examination of the current and future prospect for western expansion and the legal and political ramifications of such movement.
June 30, 1793 | Letter Thomas Jefferson to William Carmichael and William Short, June 30, 1793 Thomas Jefferson writes to William Carmichael and William Short, the United States' commissioners in Spain, addressing ongoing tensions with Spain. Spanish authorities viewed American settlements in the West with great suspicion and accused the United States of encouraging Native groups to violence. Jefferson addresses both the accusations and the United States' policies towards the Chickasaw and Creek Nations.