11Thomas Cooper to Thomas Jefferson, 6 December 1817 (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]
12Thomas Cooper to Thomas Jefferson, 7 December 1817 (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]
13Thomas Cooper to Thomas Jefferson, 19 April 1818 (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]
14John Vaughan to Thomas Jefferson, 14 May 1818 (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]
15Enclosure: Thomas Cooper’s Geology Syllabus [ca. 24 June 1818] (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]
16Thomas Cooper to Thomas Jefferson, 22 October 1819 (Jefferson Papers)
Cooper, Thomas; and mineralogy [index entry]