1Enclosure: Chiles Terrell’s Discussion of Due East and West Lines, [by 20 May 1815] (Jefferson Papers)
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2Thomas Jefferson to William Short, 13 April 1820 (Jefferson Papers)
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3Thomas Jefferson to Joseph Milligan, 29 November 1818 (Jefferson Papers)
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4Thomas Jefferson to John Wayles Eppes, 3 May 1818 (Jefferson Papers)
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5Thomas Jefferson to John Adams, 14 October 1816 (Jefferson Papers)
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6Thomas Jefferson to Thomas Cooper, 7 October 1814 (Jefferson Papers)
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