March 1, 1784 | Report Resolutions from the Committee for the Western Territory, March, 1, 1784. With Jeremiah Townley Chase and David Howell, Thomas Jefferson issues recommendations for the division and government of the western edges of United States territory. The preferred boundaries of future states are laid out and vaguely classical and Indian names are given the various regions. Congress did not adopt the Ordinance as Jefferson submitted it, primarily rejecting the abolition of slavery in the region and Jefferson's nomenclature. As passed by Congress, it became the Ordinance of 1784.
April 27, 1786 | Letter Samuel Parsons to Ezra Stiles, Forwarded to Thomas Jefferson, April 27, 1786 Samuel Parsons describes the fossils and ancient fortifications he encountered on his travels along the Ohio River during the Fall/Winter of 1785. Parsons letter to Stiles was forwarded to Jefferson, who was extremely interested in the discoveries along Big Bone Lick and the Ohio River.
March 10, 1793 | Report Thomas Jefferson to George Washington, March 10, 1793 In his official capacity as Secretary of State, Thomas Jefferson writes to George Washington, reiterating the boundaries of the western frontiers of the United States, particularly as they apply to treaties with Native groups.