Thomas Jefferson to Benjamin Austin, Jr., 18 July 1803Thomas Jefferson to William C. C. Claiborne, 18 July 1803Robert Crew to Thomas Jefferson, 18 July 1803Henry Dearborn to Thomas Jefferson, 18 July 1803Henry Dearborn to Thomas Jefferson, 18 July 1803Gabriel Duvall to Thomas Jefferson, 18 July 1803Horatio Gates to Thomas Jefferson, 18 July 1803Thomas Jefferson to Jared Mansfield, 18 July 1803Thomas Jefferson to J. P. G. Muhlenberg, 18 July 1803Charles Willson Peale to Thomas Jefferson, 18 July 1803Caspar Wistar to Thomas Jefferson, 18 July 1803Enclosure: William Clark to Meriwether Lewis, 18 July 1803 